91 results on '"Edberg, Jesper"'
Search Results
52. Anisotropic conductivity of Cellulose-PEDOT:PSS composite materials studied with a generic 3D four-point probe tool
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Wang, Xin, primary, Grimoldi, Andrea, additional, Håkansson, Karl, additional, Fall, Andreas, additional, Granberg, Hjalmar, additional, Mengistie, Desalegn, additional, Edberg, Jesper, additional, Engquist, Isak, additional, Nilsson, David, additional, Berggren, Magnus, additional, and Gustafsson, Göran, additional
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- 2019
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53. Supercapacitors on demand: all-printed energy storage devices with adaptable design
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Brooke, Robert, primary, Edberg, Jesper, additional, Say, Mehmet Girayhan, additional, Sawatdee, Anurak, additional, Grimoldi, Andrea, additional, Åhlin, Jessica, additional, Gustafsson, Göran, additional, Berggren, Magnus, additional, and Engquist, Isak, additional
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- 2019
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54. Greyscale and Paper Electrochromic Polymer Displays by UV Patterning
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Brooke, Robert, primary, Edberg, Jesper, additional, Crispin, Xavier, additional, Berggren, Magnus, additional, Engquist, Isak, additional, and Jonsson, Magnus P., additional
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- 2019
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55. Understanding the characteristics of conducting polymer-redox biopolymer supercapacitors
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Bamgbopa, Musbaudeen O., primary, Edberg, Jesper, additional, Engquist, Isak, additional, Berggren, Magnus, additional, and Tybrandt, Klas, additional
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- 2019
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56. A novel investigation on carbon nanotube/ZnO, Ag/ZnO and Ag/carbon nanotube/ZnO nanowires junctions for harvesting piezoelectric potential on textile.
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Khan, Azam, Edberg, Jesper, Nur, Omer, and Willander, Magnus
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CARBON nanotubes , *ZINC oxide , *SILVER , *NANOWIRES , *PIEZOELECTRICITY , *TEXTILES , *ELECTRIC potential , *SCANNING electron microscopy - Abstract
In the present work, three junctions were fabricated on textile fabric as an alternative substrate for harvesting piezoelectric potential. First junction was formed on ordinary textile as (textile/multi-walled carbon nanotube film/zinc oxide nanowires (S1: T/CNTs/ZnO NWs)) and the other two were formed on conductive textile with the following layer sequence: conductive textile/zinc oxide nanowires (S2: CT/ZnO NWs) and conductive textile/multi-walled carbon nanotubes film/zinc oxide nanowires (S3: CT/CNTs/ZnO NWs). Piezoelectric potential was harvested by using atomic force microscopy in contact mode for the comparative analysis of the generated piezoelectric potential. ZnO NWs were synthesized by using the aqueous chemical growth method. Surface analysis of the grown nanostructures was performed by using scanning electron microscopy and transmission electron microscopy. The growth orientation and crystalline size were studied by using X-ray diffraction technique. This study reveals that textile as an alternative substrate have many features like cost effective, highly flexible, nontoxic, light weight, soft, recyclable, reproducible, portable, wearable, and washable for nanogenerators fabrication with acceptable performance and with a wide choice of modification for obtaining large amount of piezoelectric potential. [ABSTRACT FROM AUTHOR]
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- 2014
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57. Boosting the capacity of all-organic paper supercapacitors using wood derivatives
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Edberg, Jesper, Inganäs, Olle, Engquist, Isak, Berggren, Magnus, Edberg, Jesper, Inganäs, Olle, Engquist, Isak, and Berggren, Magnus
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Printed and flexible organic electronics is a steadily expanding field of research and applications. One of the most attractive features of this technology is the possibility of large area and high throughput production to form low-cost electronics on different flexible substrates. With an increasing demand for sustainable energy production, low-cost and large volume technologies to store high-quality energy become equally important. These devices should be environmentally friendly with respect to their entire life cycle. Supercapacitors and batteries based on paper hold great promise for such applications due to the low cost and abundance of cellulose and other forest-derived components. We report a thick-film paper-supercapacitor system based on cellulose nanofibrils, the mixed ion-electron conducting polymer PEDOT: PSS and sulfonated lignin. We demonstrate that the introduction of sulfonated lignin into the cellulose-conducting polymer system increases the specific capacitance from 110 to 230 F g(-1) and the areal capacitance from 160 mF cm(-2) to 1 F cm(-2). By introducing lignosulfonate also into the electrolyte solution, equilibrium, with respect to the concentration of the redox molecule, was established between the electrode and the electrolyte, thus allowing us to perform beyond 700 charge/discharge cycles with no observed decrease in performance., Funding Agencies|Knut and Alice Wallenberg foundation [KAW 2011.0050]; Swedish Foundation for Strategic Research [GMT14-0058]; Onnesjo Foundation; Swedish Energy Agency; Advanced Functional Materials Center at Linkoping University
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- 2018
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58. Controlling the electrochromic properties of conductive polymers using UV-light
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Brooke, Robert, Edberg, Jesper, Iandolo, Donata, Berggren, Magnus, Crispin, Xavier, Engquist, Isak, Brooke, Robert, Edberg, Jesper, Iandolo, Donata, Berggren, Magnus, Crispin, Xavier, and Engquist, Isak
- Abstract
The phenomenon of electrochromism in conductive polymers is well known and has been exploited in many scientific reports. Using a newly developed patterning technique for conductive polymers, we manufactured high-resolution electrochromic devices from the complementary polymers PEDOT and polypyrrole. The technique, which combines UV-light exposure with vapor phase polymerization, has previously only been demonstrated with the conductive polymer PEDOT. We further demonstrated how the same technique can be used to control the optical properties and the electrochromic contrast in these polymers. Oxidant exposure to UV-light prior to vapor phase polymerization showed a reduction in polymer electrochromic contrast allowing high-resolution (100 mu m) patterns to completely disappear while applying a voltage bias due to their optical similarity in one redox state and dissimilarity in the other. This unique electrochromic property enabled us to construct devices displaying images that appear and disappear with the change in applied voltage. Finally, a modification of the electrochromic device architecture permitted a dual image electrochromic device incorporating patterned PEDOT and patterned polypyrrole on the same electrode, allowing the switching between two different images., Funding Agencies|European Research Council [307596]; Advanced Functional Materials Center at Linkoping University
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- 2018
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59. Nanofibrillated Cellulose-Based Electrolyte and Electrode for Paper-Based Supercapacitors
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Jiao, Fei, Edberg, Jesper, Zhao, Dan, Puzinas, Skomantas, Khan, Zia, Mäkie, Peter, Naderi, Ali, Lindstrom, Tom, Odén, Magnus, Engquist, Isak, Berggren, Magnus, Crispin, Xavier, Jiao, Fei, Edberg, Jesper, Zhao, Dan, Puzinas, Skomantas, Khan, Zia, Mäkie, Peter, Naderi, Ali, Lindstrom, Tom, Odén, Magnus, Engquist, Isak, Berggren, Magnus, and Crispin, Xavier
- Abstract
Solar photovoltaic technologies could fully deploy and impact the energy conversion systems in our society if mass-produced energy-storage solutions exist. A supercapacitor can regulate the fluctuations on the electrical grid on short time scales. Their mass-implementation requires the use of abundant materials, biological and organic synthetic materials are attractive because of atomic element abundancy and low-temperature synthetic processes. Nanofibrillated cellulose (NFC) coming from the forest industry is exploited as a three-dimensional template to control the transport of ions in an electrolyte-separator, with nanochannels filled of aqueous electrolyte. The nanochannels are defined by voids in the nanocomposite made of NFC and the proton transporting polymer polystyrene sulfonic acid PSSH. The ionic conductivity of NFC-PSSH composites (0.2 S cm(-1) at 100% relative humidity) exceeds sea water in a material that is solid, feel dry to the finger, but filled of nanodomains of water. A paper-based supercapacitor made of NFC-PSSH electrolyte-separator sandwiched between two paper-based electrodes is demonstrated. Although modest specific capacitance (81.3 F g(-1)), power density (2040 W kg(-1)) and energy density (1016 Wh kg(-1)), this is the first conceptual demonstration of a supercapacitor based on cellulose in each part of the device; which motivates the search for using paper manufacturing as mass-production of energy-storage devices.
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- 2018
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60. Correction: Ionic thermoelectric paper (vol 5, pg 16883, 2017)
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Jiao, Fei, Naderi, Ali, Zhao, Dan, Schlueter, Joshua, Shahi, Maryam, Sundstrom, Jonas, Granberg, Hjalmar, Edberg, Jesper, Ail, Ujwala, Brill, Joseph, Lindstrom, Tom, Berggren, Magnus, and Crispin, Xavier
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Electrical Engineering, Electronic Engineering, Information Engineering ,Elektroteknik och elektronik - Abstract
n/a
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- 2017
61. Flexible and Cellulose-based Organic Electronics
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Edberg, Jesper
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Other Physics Topics ,Organic electronics ,composite materials ,Annan fysik ,nanofibrillated cellulose ,conductive polymers ,paper electronics ,flexible electronics ,nanocellulose - Abstract
Organic electronics is the study of organic materials with electronic functionality and the applications of such materials. In the 1970s, the discovery that polymers can be made electrically conductive led to an explosion within this field which has continued to grow year by year. One of the attractive features of organic electronic materials is their inherent mechanical flexibility, which has led to the development of numerous flexible electronics technologies such as organic light emitting diodes and solar cells on flexible substrates. The possibility to produce electronics on flexible substrates like plastic or paper has also had a large impact on the field of printed, electronics where inks with electronic functionality are used for large area fabrication of electronic devices using classical printing methods, such as screen printing, inkjet printing and flexography. Recently, there has been a growing interest in the use of cellulose in organic and printed electronics, not only as a paper substrate but also as a component in composite materials where the cellulose provides mechanical strength and favorable 3D-microstructures. Nanofibrillated cellulose is composed of cellulose fibers with high aspect-ratio and diameters in the nanometer range. Due to its remarkable mechanical strength, large area-to-volume ratio, optical transparency and solution processability it has been widely used as a scaffold or binder for electronically active materials in applications such as batteries, supercapacitors and optoelectronics. The focus of this thesis is on flexible devices based on conductive polymers and can be divided into two parts: (1) Composite materials of nanofibrillated cellulose and the conductive polymer PEDOT:PSS and (2) patterning of vapor phase polymerized conductive polymers. In the first part, it is demonstrated how the combination of cellulose and conductive polymers can be used to make electronic materials of various form factors and functionality. Thick, freestanding and flexible “papers” are used to realize electrochemical devices such as transistors and supercapacitors while lightweight, porous and elastic aerogels are used for sensor applications. The second focus of the thesis is on a novel method of patterning conductive polymers produced by vapor phase polymerization using UV-light. This method is used to realize flexible electrochromic smart windows with high-resolution images and tunable optical contrast.
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- 2017
62. Boosting the capacity of all-organic paper supercapacitors using wood derivatives
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Edberg, Jesper, primary, Inganäs, Olle, additional, Engquist, Isak, additional, and Berggren, Magnus, additional
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- 2018
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63. Controlling the electrochromic properties of conductive polymers using UV-light
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Brooke, Robert, primary, Edberg, Jesper, additional, Iandolo, Donata, additional, Berggren, Magnus, additional, Crispin, Xavier, additional, and Engquist, Isak, additional
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- 2018
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64. Nanofibrillated Cellulose-Based Electrolyte and Electrode for Paper-Based Supercapacitors
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Jiao, Fei, primary, Edberg, Jesper, additional, Zhao, Dan, additional, Puzinas, Skomantas, additional, Khan, Zia Ullah, additional, Mäkie, Peter, additional, Naderi, Ali, additional, Lindström, Tom, additional, Odén, Magnus, additional, Engquist, Isak, additional, Berggren, Magnus, additional, and Crispin, Xavier, additional
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- 2017
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65. Electrochemical circuits from ‘cut and stick’ PEDOT:PSS-nanocellulose composite
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Edberg, Jesper, primary, Malti, Abdellah, additional, Granberg, Hjalmar, additional, Hamedi, Mahiar M, additional, Crispin, Xavier, additional, Engquist, Isak, additional, and Berggren, Magnus, additional
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- 2017
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66. Electromagnetic devices from conducting polymers
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Malti, Abdellah, primary, Tu, Deyu, additional, Edberg, Jesper, additional, Sani, Negar, additional, Rudd, Sam, additional, Evans, Drew, additional, and Forchheimer, Robert, additional
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- 2017
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67. Electrochemical circuits from 'cut and stick' PEDOT : PSS-nanocellulose composite
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Edberg, Jesper, Malti, Abdellah, Granberg, Hjalmar, Hamedi, Mahiar, Crispin, Xavier, Engquist, Isak, Berggren, Magnus, Edberg, Jesper, Malti, Abdellah, Granberg, Hjalmar, Hamedi, Mahiar, Crispin, Xavier, Engquist, Isak, and Berggren, Magnus
- Abstract
We report a flexible self-standing adhesive composite made from PEDOT:PSS and nanofibrillated cellulose. The material exhibits good combined mechanical and electrical characteristics (an elastic modulus of 4.4 MPa, and an electrical conductivity of 30 S cm(-1)). The inherent self-adhesiveness of the material enables it to be laminated and delaminated repeatedly to form and reconfigure devices and circuits. This modular property opens the door for a plethora of applications where reconfigurability and ease-of-manufacturing are of prime importance. We also demonstrate a paper composite with ionic conductivity and combine the two materials to construct electrochemical devices, namely transistors, capacitors and diodes with high values of transconductance, charge storage capacity and current rectification. We have further used these devices to construct digital circuits such as NOT, NAND and NORlogic., QC 20180130
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- 2017
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68. Ionic thermoelectric paper
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Jiao, Fei, Naderi, Ali, Zhao, Dan, Schlueter, Joshua, Shahi, Maryam, Sundström, Jonas, Granberg, Hjalmar, Edberg, Jesper, Ail, Ujwala, Brill, Joseph, Lindström, Tom, Berggren, Magnus, Crispin, Xavier, Jiao, Fei, Naderi, Ali, Zhao, Dan, Schlueter, Joshua, Shahi, Maryam, Sundström, Jonas, Granberg, Hjalmar, Edberg, Jesper, Ail, Ujwala, Brill, Joseph, Lindström, Tom, Berggren, Magnus, and Crispin, Xavier
- Abstract
Ionic thermoelectric materials, for example, polyelectrolytes such as polystyrene sulfonate sodium (PSSNa),constitute a new class of materials which are attracting interest because of their large Seebeck coefficientand the possibility that they could be used in ionic thermoelectric SCs (ITESCs) and field effect transistors.However, pure polyelectrolyte membranes are not robust or flexible. In this paper, the preparation of ionicthermoelectric paper using a simple, scalable and cost-effective method is described. After a compositewas fabricated with nanofibrillated cellulose (NFC), the resulting NFC–PSSNa paper is flexible andmechanically robust, which is desirable if it is to be used in roll-to-roll processes. The robust NFC–PSSNa thermoelectric paper combines high ionic conductivity (9 mS cm1), high ionic Seebeckcoefficient (8.4 mV K1) and low thermal conductivity (0.75 W m1 K1) at 100% relative humidity,resulting in overall figure-of-merit of 0.025 at room temperature which is slightly better than that for thePSSNa alone. Fabricating a composite with cellulose enables flexibility and robustness and this is anadvance which will enable future scaling up the manufacturing of ITESCs, but also enables its use fornew applications for conformable thermoelectric devices and flexible electronics.
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- 2017
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69. Thermoelectric Polymer Aerogels for Pressure-Temperature Sensing Applications
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Han, Shaobo, Jiao, Fei, Ullah Khan, Zia, Edberg, Jesper, Fabiano, Simone, Crispin, Xavier, Han, Shaobo, Jiao, Fei, Ullah Khan, Zia, Edberg, Jesper, Fabiano, Simone, and Crispin, Xavier
- Abstract
The evolution of the society is characterized by an increasing flow of information from things to the internet. Sensors have become the cornerstone of the internet-of-everything as they track various parameters in the society and send them to the cloud for analysis, forecast, or learning. With the many parameters to sense, sensors are becoming complex and difficult to manufacture. To reduce the complexity of manufacturing, one can instead create advanced functional materials that react to multiple stimuli. To this end, conducting polymer aerogels are promising materials as they combine elasticity and sensitivity to pressure and temperature. However, the challenge is to read independently pressure and temperature output signals without cross-talk. Here, a strategy to fully decouple temperature and pressure reading in a dual-parameter sensor based on thermoelectric polymer aerogels is demonstrated. It is found that aerogels made of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) can display properties of semiconductors lying at the transition between insulator and semimetal upon exposure to high boiling point polar solvents, such as dimethylsulfoxide (DMSO). Importantly, because of the temperature-independent charge transport observed for DMSO-treated PEDOT-based aerogel, a decoupled pressure and temperature sensing can be achieved without cross-talk in the dual-parameter sensor devices., Funding Agencies|European Research Council (ERC) [307596]
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- 2017
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70. Electromagnetic devices from conducting polymers
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Malti, Abdellah, Tu, Deyu, Edberg, Jesper, Sani, Negar, Rudd, Sam, Evans, Drew, Forchheimer, Robert, Malti, Abdellah, Tu, Deyu, Edberg, Jesper, Sani, Negar, Rudd, Sam, Evans, Drew, and Forchheimer, Robert
- Abstract
In this work, we report macroscopic electromagnetic devices made from conducting polymers. We compare their fundamental properties and device parameters with those of similar devices made from copper wires. By using self-standing supra-ampere conducting polymer wires, we are able to manufacture inductors that generate magnetic fields well over 1 G, and incorporate them in feedback LC oscillators operating at 8.65 MHz. Moreover, by utilizing the unique electrochemical functionality of conducting polymers, we demonstrate electrochemically-tunable electromagnets and electromagnetic chemical sensors. Our findings pave the way to lightweight electromagnetic technologies that can be processed (fromwater dispersions) using low-temperature protocols into flexible shapes and geometries., QC 20171023
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- 2017
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71. Thermoelectric Polymer Aerogels for Pressure–Temperature Sensing Applications
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Han, Shaobo, primary, Jiao, Fei, additional, Khan, Zia Ullah, additional, Edberg, Jesper, additional, Fabiano, Simone, additional, and Crispin, Xavier, additional
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- 2017
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72. Flexible and Cellulose-based Organic Electronics
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Edberg, Jesper, primary
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- 2017
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73. Ionic thermoelectric paper
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Jiao, Fei, primary, Naderi, Ali, additional, Zhao, Dan, additional, Schlueter, Joshua, additional, Shahi, Maryam, additional, Sundström, Jonas, additional, Granberg, Hjalmar, additional, Edberg, Jesper, additional, Ail, Ujwala, additional, Brill, Joseph, additional, Lindström, Tom, additional, Berggren, Magnus, additional, and Crispin, Xavier, additional
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- 2017
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74. Correction: Ionic thermoelectric paper
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Jiao, Fei, primary, Naderi, Ali, additional, Zhao, Dan, additional, Schlueter, Joshua, additional, Shahi, Maryam, additional, Sundström, Jonas, additional, Granberg, Hjalmar, additional, Edberg, Jesper, additional, Ail, Ujwala, additional, Brill, Joseph, additional, Lindström, Tom, additional, Berggren, Magnus, additional, and Crispin, Xavier, additional
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- 2017
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75. An Organic Mixed Ion-Electron Conductor for Power Electronics
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Malti, Abdellah, Edberg, Jesper, Granberg, Hjalmar, Khan, Zia Ullah, Andreasen, Jens W., Liu, Xianjie, Zhao, Dan, Zhang, Hao, Yao, Yulong, Brill, Joseph W., Engquist, Isak, Fahlman, Mats, Wågberg, Lars, Crispin, Xavier, Berggren, Magnus, Malti, Abdellah, Edberg, Jesper, Granberg, Hjalmar, Khan, Zia Ullah, Andreasen, Jens W., Liu, Xianjie, Zhao, Dan, Zhang, Hao, Yao, Yulong, Brill, Joseph W., Engquist, Isak, Fahlman, Mats, Wågberg, Lars, Crispin, Xavier, and Berggren, Magnus
- Abstract
A mixed ionic–electronic conductor based on nanofibrillated cellulose composited with poly(3,4-ethylene-dioxythiophene):poly(styrene-sulfonate) along with high boiling point solvents is demonstrated in bulky electrochemical devices. The high electronic and ionic conductivities of the resulting nanopaper are exploited in devices which exhibit record values for the charge storage capacitance (1F) in supercapacitors and transconductance (1S) in electrochemical transistors., QC 20160319
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- 2016
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76. Thermoelectric Polymers and their Elastic Aerogels
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Ullah Khan, Zia, Edberg, Jesper, Max Hamedi, Mahiar, Gabrielsson, Roger, Granberg, Hjalmar, Wågberg, Lars, Engquist, Isak, Berggren, Magnus, Crispin, Xavier, Ullah Khan, Zia, Edberg, Jesper, Max Hamedi, Mahiar, Gabrielsson, Roger, Granberg, Hjalmar, Wågberg, Lars, Engquist, Isak, Berggren, Magnus, and Crispin, Xavier
- Abstract
Electronically conducting polymers constitute an emerging class of materials for novel electronics, such as printed electronics and flexible electronics. Their properties have been further diversified to introduce elasticity, which has opened new possibility for "stretchable" electronics. Recent discoveries demonstrate that conducting polymers have thermoelectric properties with a low thermal conductivity, as well as tunable Seebeck coefficients - which is achieved by modulating their electrical conductivity via simple redox reactions. Using these thermoelectric properties, all-organic flexible thermoelectric devices, such as temperature sensors, heat flux sensors, and thermoelectric generators, are being developed. In this article we discuss the combination of the two emerging fields: stretchable electronics and polymer thermoelectrics. The combination of elastic and thermoelectric properties seems to be unique for conducting polymers, and difficult to achieve with inorganic thermoelectric materials. We introduce the basic concepts, and state of the art knowledge, about the thermoelectric properties of conducting polymers, and illustrate the use of elastic thermoelectric conducting polymer aerogels that could be employed as temperature and pressure sensors in an electronic-skin., Funding Agencies|European Research Council (ERC) [307596]; Swedish Foundation for Strategic Research; Knut and Alice Wallenberg Foundation; Swedish Energy Agency; Advanced Functional Materials Center at Linkoping University; Research Institute of Sweden (RISE)
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- 2016
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77. Patterning and Conductivity Modulation of Conductive Polymers by UV Light Exposure
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Edberg, Jesper, Iandolo, Donata, Brooke, Robert, Liu, Xianjie, Musumeci, Chiara, Wenzel Andreasen, Jens, Simon, Daniel, Evans, Drew, Engquist, Isak, Berggren, Magnus, Edberg, Jesper, Iandolo, Donata, Brooke, Robert, Liu, Xianjie, Musumeci, Chiara, Wenzel Andreasen, Jens, Simon, Daniel, Evans, Drew, Engquist, Isak, and Berggren, Magnus
- Abstract
A novel patterning technique of conductive polymers produced by vapor phase polymerization is demonstrated. The method involves exposing an oxidant film to UV light which changes the local chemical environment of the oxidant and subsequently the polymerization kinetics. This procedure is used to control the conductivity in the conjugated polymer poly(3,4-ethylenedioxythiophene): tosylate by more than six orders of magnitude in addition to producing high-resolution patterns and optical gradients. The mechanism behind the modulation in the polymerization kinetics by UV light irradiation as well as the properties of the resulting polymer are investigated., Funding Agencies|Knut and Alice Wallenberg Foundation [KAW 2011.0050, KAW 2014.0041, KAW 2012.0302]
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- 2016
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78. Patterning and Conductivity Modulation of Conductive Polymers by UV Light Exposure
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Edberg, Jesper, primary, Iandolo, Donata, additional, Brooke, Robert, additional, Liu, Xianjie, additional, Musumeci, Chiara, additional, Andreasen, Jens Wenzel, additional, Simon, Daniel T., additional, Evans, Drew, additional, Engquist, Isak, additional, and Berggren, Magnus, additional
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- 2016
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79. Thermoelectric Polymers and their Elastic Aerogels
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Khan, Zia Ullah, primary, Edberg, Jesper, additional, Hamedi, Mahiar Max, additional, Gabrielsson, Roger, additional, Granberg, Hjalmar, additional, Wågberg, Lars, additional, Engquist, Isak, additional, Berggren, Magnus, additional, and Crispin, Xavier, additional
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- 2016
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80. Conducting Polymers: An Organic Mixed Ion-Electron Conductor for Power Electronics (Adv. Sci. 2/2016)
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Malti, Abdellah, primary, Edberg, Jesper, additional, Granberg, Hjalmar, additional, Khan, Zia Ullah, additional, Andreasen, Jens W., additional, Liu, Xianjie, additional, Zhao, Dan, additional, Zhang, Hao, additional, Yao, Yulong, additional, Brill, Joseph W., additional, Engquist, Isak, additional, Fahlman, Mats, additional, Wågberg, Lars, additional, Crispin, Xavier, additional, and Berggren, Magnus, additional
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- 2016
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81. An organic mixed ion-electron conductor for power electronics
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Malti, Abdellah, Edberg, Jesper, Granberg, Hjalmar, Ullah Khan, Zia, Andreasen, Jens W., Liu, Xianjie, Zhao, Dan, Zhang, Hao, Yao, Yulong, Brill, Joseph W., Engquist, Isak, Fahlman, Mats, Wågberg, Lars, Crispin, Xavier, Berggren, Magnus, Malti, Abdellah, Edberg, Jesper, Granberg, Hjalmar, Ullah Khan, Zia, Andreasen, Jens W., Liu, Xianjie, Zhao, Dan, Zhang, Hao, Yao, Yulong, Brill, Joseph W., Engquist, Isak, Fahlman, Mats, Wågberg, Lars, Crispin, Xavier, and Berggren, Magnus
- Abstract
A mixed ionic–electronic conductor based on nanofibrillated cellulose composited with poly(3,4-ethylene-dioxythiophene):poly(styrene-sulfonate) along with high boiling point solvents is demonstrated in bulky electrochemical devices. The high electronic and ionic conductivities of the resulting nanopaper are exploited in devices which exhibit record values for the charge storage capacitance (1F) in supercapacitors and transconductance (1S) in electrochemical transistors.
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- 2015
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82. Enabling organic power electronics with a cellulose nano-scaffold
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Malti, Abdellah, Edberg, Jesper, Granberg, Hjalmar, Khan, Zia Ullah, Andreasen, Jens W., Liu, Xianjie, Zhao, Dan, Zhang, Hao, Yao, Ylong, Brill, Joseph W., Engquist, Isak, Fahlman, Mats, Wåberg, Lars, Crispin, Xavier, Berggren, Magnus, Malti, Abdellah, Edberg, Jesper, Granberg, Hjalmar, Khan, Zia Ullah, Andreasen, Jens W., Liu, Xianjie, Zhao, Dan, Zhang, Hao, Yao, Ylong, Brill, Joseph W., Engquist, Isak, Fahlman, Mats, Wåberg, Lars, Crispin, Xavier, and Berggren, Magnus
- Abstract
Exploiting the nanoscale properties of certain materials enables the creation of new materials with a unique set of properties. Here, we report on an electronic (and ionic) conducting paper based on cellulose nanofibrils (CNF) composited with poly(3,4-ethylene-dioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS), which may be facilely processed into large three-dimensional geometries, while keeping unprecedented electronic and ionic conductivities of 140 S/cm and 20 mS/cm, respectively. This is achieved by cladding the CNF with PEDOT:PSS, and trapping an ion-transporting phase in the interstices between these nanofibrils. The unique properties of the resulting nanopaper composite have been used to demonstrate (electrochemical) transistors, supercapacitors and conductors resulting in exceptionally high device parameters, such as an associated transconductance, charge storage capacity and current level beyond 1 S, 1 F and 1 A, respectively.
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- 2015
83. Nanofibrillated cellulose aerogels functionalized with conducting polymers for thermoelectric and dual-sensing applications
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Khan, Zia Ullah, Edberg, Jesper, Hamedi, Mahiar, Gabrielsson, Roger, Granberg, Hjalmar, Engquist, Isak, Berggren, Magnus, Crispin, Xavier, Khan, Zia Ullah, Edberg, Jesper, Hamedi, Mahiar, Gabrielsson, Roger, Granberg, Hjalmar, Engquist, Isak, Berggren, Magnus, and Crispin, Xavier
- Abstract
Large amount of heat is wasted in industries, power generation plants and ordinary household appliances. This waste heat, can be a useful input to a thermoelectric generator (TEG) that can convert it to electricity. Conducting polymers (CPs) have been proved as best suited thermoelectric (TE) materials for lower temperatures, being not toxic, abundant in nature and solution processible. So far, CPs have been characterized as thin films, but it needs the third dimension to realize vertical TEGs which is possible by coating it on low thermal conductivity 3D skeletons. In this work, porous bulk cellulose structures have been used as a supporting material and were coated with CPs in various ways. The blend of cellulose and polymer were also freeze-dried, resulting in conducting and soft composites. Those flexible aerogels were utilized as a dual parameter sensor to sense pressure and temperature, based on the concept of thermoelectricity. It opens another application area of sensing, utilizing the thermoelectric phenomenon beyond the prevailing power generation concept. The sensitivity of such materials can be enhanced to make them useful as electronic skin in healthcare and robotics.
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- 2015
84. Frequency-dependent photothermal measurement of transverse thermal diffusivity of organic semiconductors
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Brill, J. W., primary, Shahi, Maryam, additional, Payne, Marcia M., additional, Edberg, Jesper, additional, Yao, Y., additional, Crispin, Xavier, additional, and Anthony, J. E., additional
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- 2015
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85. An Organic Mixed Ion–Electron Conductor for Power Electronics
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Malti, Abdellah, primary, Edberg, Jesper, additional, Granberg, Hjalmar, additional, Khan, Zia Ullah, additional, Andreasen, Jens W., additional, Liu, Xianjie, additional, Zhao, Dan, additional, Zhang, Hao, additional, Yao, Yulong, additional, Brill, Joseph W., additional, Engquist, Isak, additional, Fahlman, Mats, additional, Wågberg, Lars, additional, Crispin, Xavier, additional, and Berggren, Magnus, additional
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- 2015
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86. RETRACTED: A novel investigation on carbon nanotube/ZnO, Ag/ZnO and Ag/carbon nanotube/ZnO nanowires junctions for harvesting piezoelectric potential on textile
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Khan, Azam, Edberg, Jesper, Nur, Omer, Willander, Magnus, Khan, Azam, Edberg, Jesper, Nur, Omer, and Willander, Magnus
- Abstract
In the present work, three junctions were fabricated on textile fabric as an alternative substrate for harvesting piezoelectric potential. First junction was formed on ordinary textile as (textile/multi-walled carbon nanotube film/zinc oxide nanowires (S1: T/CNTs/ZnO NWs)) and the other two were formed on conductive textile with the following layer sequence: conductive textile/zinc oxide nanowires (S2: CT/ZnO NWs) and conductive textile/multi-walled carbon nanotubes film/zinc oxide nanowires (S3: CT/CNTs/ZnO NWs). Piezoelectric potential was harvested by using atomic force microscopy in contact mode for the comparative analysis of the generated piezoelectric potential. ZnO NWs were synthesized by using the aqueous chemical growth method. Surface analysis of the grown nanostructures was performed by using scanning electron microscopy and transmission electron microscopy. The growth orientation and crystalline size were studied by using X-ray diffraction technique. This study reveals that textile as an alternative substrate have many features like cost effective, highly flexible, nontoxic, light weight, soft, recyclable, reproducible, portable, wearable, and washable for nanogenerators fabrication with acceptable performance and with a wide choice of modification for obtaining large amount of piezoelectric potential., The article is retracted see retracted noticed 10.1063/5.0120192.
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- 2014
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87. A Paper‐Based Triboelectric Touch Interface: Toward Fully Green and Recyclable Internet of Things
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Edberg, Jesper, Boda, Ulrika, Mulla, Mohammad Yusuf, Brooke, Robert, Pantzare, Sandra, Strandberg, Jan, Fall, Andreas, Economou, Konstantin, Beni, Valerio, and Armgarth, Astrid
- Abstract
The transition to a sustainable society is driving the development of green electronic solutions designed to have a minimal environmental impact. One promising route to achieve this goal is to construct electronics from biobased materials like cellulose, which is carbon neutral, non‐toxic, and recyclable. This is especially true for internet‐of‐things devices, which are rapidly growing in number and are becoming embedded in every aspect of our lives. Here, paper‐based sensor circuits are demonstrated, which use triboelectric pressure sensors to help elderly people communicate with the digital world using an interface in the form of an electronic “book”, which is more intuitive to them. The sensors are manufactured by screen printing onto flexible paper substrates, using in‐house developed cellulose‐based inks with non‐hazardous solvents. The triboelectric sensor signal, generated by the contact between a finger and chemically modified cellulose, can reach several volts, which can be registered by a portable microcontroller card and transmitted by Bluetooth to any device with an internet connection. Apart from the microcontroller (which can be easily removed), the whole system can be recycled at the end of life. A triboelectric touch interface, manufactured using printed electronics on flexible paper substrates, using cellulose‐based functional inks is demonstrated. These metal‐free green electronics circuits are implemented in an “electronic book” demonstrator, equipped with wireless communication that can control remote devices, as a step toward sustainable and recyclable internet‐of‐things devices.
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- 2023
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88. Redox-tunable structural colour images by UV-patterned conducting polymer nanofilms on metal surfaces
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Chen, Shangzhi, Rossi, Stefano, Kuhne, Philipp, Stanishev, Vallery, Engquist, Isak, Berggren, Magnus, Darakchieva, Vanya, Edberg, Jesper, Jonsson, Magnus, Chen, Shangzhi, Rossi, Stefano, Kuhne, Philipp, Stanishev, Vallery, Engquist, Isak, Berggren, Magnus, Darakchieva, Vanya, Edberg, Jesper, and Jonsson, Magnus
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Precise manipulation of light-matter interaction has enabled a wide variety of approaches to create bright and vivid structural colours. Techniques utilizing photonic crystals, Fabry-Pérot cavities, plasmonics, or high-refractive index dielectric metasurfaces have been studied for applications ranging from optical coatings to reflective displays. However, complicated fabrication procedures for sub-wavelength nanostructures, limited active areas, and inherent absence of tunability of these approaches significantly impede their further development towards flexible, large-scale, and switchable devices compatible with facile and cost-effective production. Herein, we present a simple and efficient method to generate structural colours based on nanoscale conducting polymer films prepared on metallic surfaces via vapour phase polymerization and ultraviolet (UV) light patterning. Varying the UV dose enables synergistic control of both nanoscale film thickness and polymer permittivity, which generates controllable colours from violet to red. Together with greyscale photomasks this enables fabrication of high-resolution colour images using single exposure steps. We further demonstrate spatiotemporal tuning of the structurally coloured surfaces and images via electrochemical modulation of the polymer redox state. The simple structure, facile fabrication, wide colour gamut, and dynamic colour tuning make this concept competitive for future multi-functional and smart displays.
89. Electromagnetic devices from conducting polymers
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Sam Rudd, Drew Evans, Robert Forchheimer, Abdellah Malti, Jesper Edberg, Deyu Tu, Negar Abdollahi Sani, Malti, Abdellah, Tu, Deyu, Edberg, Jesper, Sani, Negar, Rudd, Sam, Evans, Drew, and Forchheimer, Robert
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solenoid ,Materials science ,Nanotechnology ,Solenoid ,02 engineering and technology ,010402 general chemistry ,Inductor ,01 natural sciences ,law.invention ,Biomaterials ,PEDOT:PSS ,law ,oscillator ,Materials Chemistry ,Electromagnetic devices ,conducting polymer ,Electrical and Electronic Engineering ,Device parameters ,PEDOT ,Conductive polymer ,Electromagnet ,electromagnetic transistor ,General Chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,0104 chemical sciences ,Electronic, Optical and Magnetic Materials ,Magnetic field ,0210 nano-technology ,electrochemical snesor - Abstract
In this work, we report macroscopic electromagnetic devices made from conducting polymers. We compare their fundamental properties and device parameters with those of similar devices made from copper wires. By using self-standing supra-ampere conducting polymer wires, we are able to manufacture inductors that generate magnetic fields well over 1 G, and incorporate them in feedback LC oscillators operating at 8.65 MHz. Moreover, by utilizing the unique electrochemical functionality of conducting polymers, we demonstrate electrochemically-tunable electromagnets and electromagnetic chemical sensors. Our findings pave the way to lightweight electromagnetic technologies that can be processed (from water dispersions) using low-temperature protocols into flexible shapes and geometries. Refereed/Peer-reviewed
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- 2017
90. Patterning and conductivity modulation of conductive polymers by UV light exposure
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Drew Evans, Chiara Musumeci, Jesper Edberg, Jens Wenzel Andreasen, Xianjie Liu, Robert Brooke, Donata Iandolo, Magnus Berggren, Daniel Simon, Isak Engquist, Edberg, Jesper, Iandolo, Donata, Brooke, Robert, Liu, Xianjie, Musumeci, Chiara, Andreasen, Jens Wenzel, Simon, Daniel T, Evans, Drew, Engquist, Isak, and Berggren, Magnus
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Materials science ,Vapor phase ,02 engineering and technology ,Conductivity ,010402 general chemistry ,01 natural sciences ,Biomaterials ,chemistry.chemical_compound ,Polymer chemistry ,Polymerkemi ,Electrochemistry ,poly(3,4-ethylenedioxythiophene) ,Light exposure ,Organic electronics ,Conductive polymer ,Conductivity modulation ,patterning ,technology, industry, and agriculture ,Polymer Chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,0104 chemical sciences ,Electronic, Optical and Magnetic Materials ,organic electronics ,Chemical engineering ,chemistry ,Polymerization ,vapor phase polymerization ,sense organs ,conductivity ,0210 nano-technology ,conductive polymers ,Poly(3,4-ethylenedioxythiophene) - Abstract
A novel patterning technique of conductive polymers produced by vapor phase polymerization is demonstrated. The method involves exposing an oxidant film to UV light which changes the local chemical environment of the oxidant and subsequently the polymerization kinetics. This procedure is used to control the conductivity in the conjugated polymer poly(3,4-ethylenedioxythiophene): tosylate by more than six orders of magnitude in addition to producing high-resolution patterns and optical gradients. The mechanism behind the modulation in the polymerization kinetics by UV light irradiation as well as the properties of the resulting polymer are investigated. Funding Agencies|Knut and Alice Wallenberg Foundation [KAW 2011.0050, KAW 2014.0041, KAW 2012.0302]
- Published
- 2016
91. Iron-Catalyzed Laser-Induced Graphitization - Multiscale Analysis of the Structural Evolution and Underlying Mechanism.
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Dreimol CH, Kürsteiner R, Ritter M, Parrilli A, Edberg J, Garemark J, Stucki S, Yan W, Tinello S, Panzarasa G, and Burgert I
- Abstract
The transition to sustainable materials and eco-efficient processes in commercial electronics is a driving force in developing green electronics. Iron-catalyzed laser-induced graphitization (IC-LIG) has been demonstrated as a promising approach for rendering biomaterials electrically conductive. To optimize the IC-LIG process and fully exploit its potential for future green electronics, it is crucial to gain deeper insights into its catalyzation mechanism and structural evolution. However, this is challenging due to the rapid nature of the laser-induced graphitization process. Therefore, multiscale preparation techniques, including ultramicrotomy of the cross-sectional transition zone from precursor to fully graphitized IC-LIG electrode, are employed to virtually freeze the IC-LIG process in time. Complementary characterization is performed to generate a 3D model that integrates nanoscale findings within a mesoscopic framework. This enabled tracing the growth and migration behavior of catalytic iron nanoparticles and their role during the catalytic laser-graphitization process. A three-layered arrangement of the IC-LIG electrode is identified including a highly graphitized top layer with an interplanar spacing of 0.343 nm. The middle layer contained γ-iron nanoparticles encapsulated in graphitic shells. A comparison with catalyst-free laser graphitization approaches highlights the unique opportunities that IC-LIG offers and discuss potential applications in energy storage devices, catalysts, sensors, and beyond., (© 2024 Wiley‐VCH GmbH.)
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- 2024
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