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240 results on '"Terlier, Tanguy"'

1. Improved reverse bias stability in p–i–n perovskite solar cells with optimized hole transport materials and less reactive electrodes

Author

Jiang, Fangyuan, Shi, Yangwei, Rana, Tanka R., Morales, Daniel, Gould, Isaac E., McCarthy, Declan P., Smith, Joel A., Christoforo, M. Greyson, Yaman, Muammer Y., Mandani, Faiz, Terlier, Tanguy, Contreras, Hannah, Barlow, Stephen, Mohite, Aditya D., Snaith, Henry J., Marder, Seth R., MacKenzie, J. Devin, McGehee, Michael D., and Ginger, David S.

Published
2024
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2. Bottom-up Integration of TMDCs with Pre-Patterned Device Architectures via Transfer-free Chemical Vapor Deposition

Author

Sassi, Lucas M., Iyengar, Sathvik Ajay, Puthirath, Anand B., Huang, Yuefei, Li, Xingfu, Terlier, Tanguy, Mojibpour, Ali, Teixeira, Ana Paula C., Bharadwaj, Palash, Tiwary, Chandra Sekhar, Vajtai, Robert, Talapatra, Saikat, Yakobson, Boris, and Ajayan, Pulickel M.

Subjects
Condensed Matter - Materials Science, Physics - Applied Physics
Abstract

Two-dimensional (2D) transition metal dichalcogenides (TMDCs) remain a topic of immense interest. Specifically, given their low operational switching costs, they find many niche applications in new computing architectures with the promise of continued miniaturization. However, challenges lie in Back End of Line (BEOL) integration temperature and time compliance regarding current requirements for crystal growth. Additionally, deleterious and time-consuming transfer processes and multiple steps involved in channel/contact engineering can cripple device performance. This work demonstrates kinetics-governed in-situ growth regimes (surface or edge growth from gold) of WSe2 and provides a mechanistic understanding of these regimes via energetics across various material interfaces. As a proof-of-concept, field effect transistors (FET) with an in-situ grown WSe2 channel across Au contacts are fabricated, demonstrating a 2D semiconductor transistor via a transfer-free method within the 450-600 C 2h-time window requirement BEOL integration. We leverage directional edge growth to fabricate contacts with robust thickness-dependent Schottky-to-Ohmic behavior. By transitioning between Au and SiO2 growth substrates in situ, this work achieves strain-induced subthreshold swing of 140 mV/decade, relatively high mobility of 107 +- 19 cm2V-1s-1, and robust ON/OFF ratios 10^6 in the fabricated FETs., Comment: 32 pages, 5 Figures

Published
2023

3. Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes

Author

Wang, Kang, Lin, Zih-Yu, Zhang, Zihan, Jin, Linrui, Ma, Ke, Coffey, Aidan H, Atapattu, Harindi R, Gao, Yao, Park, Jee Yung, Wei, Zitang, Finkenauer, Blake P, Zhu, Chenhui, Meng, Xiangeng, Chowdhury, Sarah N, Chen, Zhaoyang, Terlier, Tanguy, Do, Thi-Hoai, Yao, Yan, Graham, Kenneth R, Boltasseva, Alexandra, Guo, Tzung-Fang, Huang, Libai, Gao, Hanwei, Savoie, Brett M, and Dou, Letian

Subjects
Physical Sciences, Quantum Physics, Chemical Sciences, Physical Chemistry
Abstract

Electroluminescence efficiencies and stabilities of quasi-two-dimensional halide perovskites are restricted by the formation of multiple-quantum-well structures with broad and uncontrollable phase distributions. Here, we report a ligand design strategy to substantially suppress diffusion-limited phase disproportionation, thereby enabling better phase control. We demonstrate that extending the π-conjugation length and increasing the cross-sectional area of the ligand enables perovskite thin films with dramatically suppressed ion transport, narrowed phase distributions, reduced defect densities, and enhanced radiative recombination efficiencies. Consequently, we achieved efficient and stable deep-red light-emitting diodes with a peak external quantum efficiency of 26.3% (average 22.9% among 70 devices and cross-checked) and a half-life of ~220 and 2.8 h under a constant current density of 0.1 and 12 mA/cm2, respectively. Our devices also exhibit wide wavelength tunability and improved spectral and phase stability compared with existing perovskite light-emitting diodes. These discoveries provide critical insights into the molecular design and crystallization kinetics of low-dimensional perovskite semiconductors for light-emitting devices.

Published
2023

10. An electrochemically stable homogeneous glassy electrolyte formed at room temperature for all-solid-state sodium batteries

Author

Chi, Xiaowei, Zhang, Ye, Hao, Fang, Kmiec, Steven, Dong, Hui, Xu, Rong, Zhao, Kejie, Ai, Qing, Terlier, Tanguy, Wang, Liang, Zhao, Lihong, Guo, Liqun, Lou, Jun, Xin, Huolin L, Martin, Steve W, and Yao, Yan

Subjects
Engineering, Materials Engineering, Chemical Sciences, Physical Chemistry, Affordable and Clean Energy
Abstract

All-solid-state sodium batteries (ASSSBs) are promising candidates for grid-scale energy storage. However, there are no commercialized ASSSBs yet, in part due to the lack of a low-cost, simple-to-fabricate solid electrolyte (SE) with electrochemical stability towards Na metal. In this work, we report a family of oxysulfide glass SEs (Na3PS4-xOx, where 0

Published
2022

12. Nanocrystalline Boron Nitride Coating for High Conductivity, Low Temperature Proton Exchange Membrane Fuel Cells

Author

Akinwande, Deji, primary, Kutagulla, Shanmukh, additional, Biswas, Abhijit, additional, Mutyala, Devi, additional, Terlier, Tanguy, additional, Le, Nam, additional, Caldino-Bohn, Isabel, additional, Favela, Christopher, additional, Vajtai, Robert, additional, Korgel, Brian A., additional, Aluru, Narayana, additional, and Ajayan, Pulickel, additional

Published
2024
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15. Evaluation and Mitigation of Impurities in Additively Manufactured Epitaxial Gallium Nitride

Author

Berkson, Michael A., primary, Pogue, Elizabeth A., additional, Bartlett, Mairead E., additional, Shuler, Scott A., additional, Kesavan, Meera M., additional, Montalbano, Timothy J., additional, Bennett-Jackson, Andrew L., additional, Abraham, John B., additional, Martins, Isabela Z., additional, Terlier, Tanguy, additional, and Gagnon, Jarod C., additional

Published
2024
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18. The Effect of a Low Degree of Fluorine Substitution on Cotton Fiber Properties

Author

Kuperman, Ofir Aharon, De Andrade, Peterson, Terlier, Tanguy, Kirkensgaard, Jacob Judas Kain, Field, Robert A., Natalio, Filipe, Kuperman, Ofir Aharon, De Andrade, Peterson, Terlier, Tanguy, Kirkensgaard, Jacob Judas Kain, Field, Robert A., and Natalio, Filipe

Abstract

Cellulose modification often employs chemical processes to tailor its properties and functionalities to fit the demands of a wide range of applications, maximizing its potential as a versatile and sustainable material. From both synthetic and environmental standpoints, one of the ultimate goals is to achieve significant modifications to enhance the end properties of the cellulose while minimizing the number of modified building blocks. The current study demonstrates that a synthetic glucose derivative, 6-deoxy-6-fluoro-glucose (6F-Glc), fed into the fertilized cotton ovules, resulted in the accumulation of fluorine inside the cotton fibers with no apparent alteration to their morphology or development. These fibers exhibited a degree of substitution of 0.006, which is 170 times lower than that reported for chemical methods for cellulose modification. However, the physical characterization of the modified fibers showed a surprisingly large impact of this low-level modification on the cellulose structure (e.g., hydrogen bonding network rearrangement) and a modest increase in the mechanical properties of the fibers. The obtained results exemplify the use of biological systems to introduce low quantities of new functionalities while maximizing the impact on fiber properties.

Published
2024

20. Reduced trap state density in AlGaN/GaN HEMTs with low-temperature CVD-grown BN gate dielectric.

Author

He, Ziyi, Zhang, Xiang, Pieshkov, Tymofii S., Yekta, Ali Ebadi, Terlier, Tanguy, Mudiyanselage, Dinusha Herath, Wang, Dawei, Da, Bingcheng, Xu, Mingfei, Luo, Shisong, Chang, Cheng, Li, Tao, Nemanich, Robert J., Zhao, Yuji, Ajayan, Pulickel M., and Fu, Houqiang

Subjects
ELECTRON energy loss spectroscopy, DENSITY of states, SECONDARY ion mass spectrometry, MODULATION-doped field-effect transistors, BORON nitride, GALLIUM nitride, DIELECTRICS, X-ray photoelectron spectroscopy
Abstract

In this Letter, low-temperature (400 °C) chemical vapor deposition-grown boron nitride (BN) was investigated as the gate dielectric for AlGaN/GaN metal–insulator–semiconductor high electron mobility transistors (MISHEMTs) on a Si substrate. Comprehensive characterizations using x-ray photoelectron spectroscopy, reflection electron energy loss spectroscopy, atomic force microscope, high-resolution transmission electron microscopy, and time-of-flight secondary ion mass spectrometry were conducted to analyze the deposited BN dielectric. Compared with conventional Schottky-gate HEMTs, the MISHEMTs exhibited significantly enhanced performance with 3 orders of magnitude lower reverse gate leakage current, a lower off-state current of 1 × 10−7 mA/mm, a higher on/off current ratio of 108, and lower on-resistance of 5.40 Ω mm. The frequency-dependent conductance measurement was performed to analyze the BN/HEMT interface, unveiling a low interface trap state density (Dit) on the order of 5 × 1011–6 × 1011 cm−2 eV−1. This work shows the effectiveness of low-temperature BN dielectrics and their potential for advancing GaN MISHEMTs toward high-performance power and RF electronics applications. [ABSTRACT FROM AUTHOR]

Published
2024
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27. The competing influence of surface roughness, hydrophobicity, and electrostatics on protein dynamics on a self-assembled monolayer.

Author

Misiura, Anastasiia, Dutta, Chayan, Leung, Wesley, Zepeda O, Jorge, Terlier, Tanguy, and Landes, Christy F.

Subjects
SURFACE roughness, MONOMOLECULAR films, CONTACT angle, ELECTROSTATICS, ATOMIC force microscopy
Abstract

Surface morphology, in addition to hydrophobic and electrostatic effects, can alter how proteins interact with solid surfaces. Understanding the heterogeneous dynamics of protein adsorption on surfaces with varying roughness is experimentally challenging. In this work, we use single-molecule fluorescence microscopy to study the adsorption of α-lactalbumin protein on the glass substrate covered with a self-assembled monolayer (SAM) with varying surface concentrations. Two distinct interaction mechanisms are observed: localized adsorption/desorption and continuous-time random walk (CTRW). We investigate the origin of these two populations by simultaneous single-molecule imaging of substrates with both bare glass and SAM-covered regions. SAM-covered areas of substrates are found to promote CTRW, whereas glass surfaces promote localized motion. Contact angle measurements and atomic force microscopy imaging show that increasing SAM concentration results in both increasing hydrophobicity and surface roughness. These properties lead to two opposing effects: increasing hydrophobicity promotes longer protein flights, but increasing surface roughness suppresses protein dynamics resulting in shorter residence times. Our studies suggest that controlling hydrophobicity and roughness, in addition to electrostatics, as independent parameters could provide a means to tune desirable or undesirable protein interactions with surfaces. [ABSTRACT FROM AUTHOR]

Published
2022
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29. Heteroatom Functionalization of H-Terminated Diamond Surfaces

Author

Li, Chenxi, primary, Oliveira, Eliezer F., additional, Biswas, Abhijit, additional, Puthirath, Anand B., additional, Zhang, Xiang, additional, Pramanik, Atin, additional, Garratt, Elias J., additional, Neupane, Mahesh R., additional, Pate, Bradford B., additional, Birdwell, Anthony Glen, additional, Ivanov, Tony G., additional, Terlier, Tanguy, additional, Vajtai, Robert, additional, and Ajayan, Pulickel M., additional

Published
2023
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31. Deterministic fabrication of 3D/2D perovskite bilayer stacks for durable and efficient solar cells

Author

Sidhik, Siraj, Wang, Yafei, De Siena, Michael, Asadpour, Reza, Torma, Andrew J., Terlier, Tanguy, Ho, Kevin, Li, Wenbin, Puthirath, Anand B., Shuai, Xinting, Agrawal, Ayush, Traore, Boubacar, Jones, Matthew, Giridharagopal, Rajiv, Ajayan, Pulickel M., Strzalka, Joseph, Ginger, David S., Katan, Claudine, Alam, Muhammad Ashraful, Even, Jacky, Kanatzidis, Mercouri G., Mohite, Aditya D., Rice University [Houston], Northwestern University [Evanston], Purdue University [West Lafayette], University of Washington [Seattle], Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Argonne National Laboratory [Lemont] (ANL), Institut des Fonctions Optiques pour les Technologies de l'informatiON (Institut FOTON), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Centre National de la Recherche Scientifique (CNRS), J.E. acknowledges the financial support from the Institut Universitaire de France. This work was granted access to the HPC resources of [TGCC/CINES/IDRIS] under the allocations 2021-A0090907682 made by GENCI., and European Project: PeroCUBE

Subjects
[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Multidisciplinary
Abstract

Realizing solution-processed heterostructures is a long-enduring challenge in halide perovskites because of solvent incompatibilities that disrupt the underlying layer. By leveraging the solvent dielectric constant and Gutmann donor number, we could grow phase-pure two-dimensional (2D) halide perovskite stacks of the desired composition, thickness, and bandgap onto 3D perovskites without dissolving the underlying substrate. Characterization reveals a 3D–2D transition region of 20 nanometers mainly determined by the roughness of the bottom 3D layer. Thickness dependence of the 2D perovskite layer reveals the anticipated trends for n-i-p and p-i-n architectures, which is consistent with band alignment and carrier transport limits for 2D perovskites. We measured a photovoltaic efficiency of 24.5%, with exceptional stability of T 99 (time required to preserve 99% of initial photovoltaic efficiency) of >2000 hours, implying that the 3D/2D bilayer inherits the intrinsic durability of 2D perovskite without compromising efficiency.

Published
2022

34. Lipid Deposition Profiles Influence Foreign Body Responses (Adv. Mater. 21/2023)

Author

Schreib, Christian C., primary, Jarvis, Maria I., additional, Terlier, Tanguy, additional, Goell, Jacob, additional, Mukherjee, Sudip, additional, Doerfert, Michael D., additional, Wilson, Taylor Anne, additional, Beauregard, Michael, additional, Martins, Kevin N., additional, Lee, Jared, additional, Sanchez Solis, Leonardo D., additional, Vazquez, Esperanza, additional, Oberli, Matthias A., additional, Hanak, Brian W., additional, Diehl, Michael, additional, Hilton, Isaac, additional, and Veiseh, Omid, additional

Published
2023
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35. Inhibiting Asphaltene Deposition Using Polymer-Functionalized Nanoparticles in Microfluidic Porous Media

Author

Nguyen, Thao Vy, Zhang, Zhuqing, Wang, Jianxin, Sagi, Aparna, Kapoor, Yogesh, Terlier, Tanguy, and Biswal, Sibani Lisa

Abstract

Asphaltenes are the heaviest and most polarizable fractions of crude oil. During the oil production process, changes in the temperature, pressure, and oil composition can destabilize asphaltenes. This destabilization leads to asphaltene aggregation and deposition, which can cause major clogging problems in both the wellbore and near-wellbore regions as well as the production facilities. In this study, we developed and investigated the application of acrylic acid and 2-acrylanmido-2-methylpropanesulfonic acid (AA–AMPS)-functionalized magnetic nanoparticles as a surface coating in inhibiting asphaltene deposition. The use of the porous media microfluidic platform allows for efficient evaluation of the effectiveness of the nanoparticle coating in mitigating asphaltene deposition in various crude oils. We demonstrated that the nanoparticle coating is effective in inhibiting asphaltene deposition, showing up to a 75% improvement in permeability change. The study also explores the dynamics of asphaltene aggregation and deposition in different crude oils. We identified factors such as asphaltene aggregate size as well as the physical and chemical characteristics of the aggregates that can determine the effectiveness of different mitigation methods.

Published
2023
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36. Controlling Crystallization of Quasi‐2D Perovskite Solar Cells: Incorporating Bulky Conjugated Ligands.

Author

Coffey, Aidan H., Yang, Seok Joo, Gómez, Martín, Finkenauer, Blake P., Terlier, Tanguy, Zhu, Chenhui, and Dou, Letian

Subjects
SOLAR cells, CRYSTALLIZATION, LIGANDS (Chemistry), PEROVSKITE, OPEN-circuit voltage
Abstract

Quasi‐2D hybrid halide perovskites have drawn considerable attention due to their improved stability and facile tunability compared to 3D perovskites. The expansiveness of possibilities has thus far been limited by the difficulty in incorporating large ligands into thin‐film devices. Here, a bulky bi‐thiophene 2T ligand is focused on to develop a solvent system around creating strongly vertically‐aligned (2T)2(MA)6Pb7I22 (n = 7) quasi‐2D perovskite films. By starting with a poorly coordinating solvent (gamma‐butyrolactone) and adding a small amount of dimethylsulfoxide and methanol, it is found that vertical orientation and z‐uniformity is greatly improved. These are carefully examined and verified using grazing‐incidence wide‐angle X‐ray scattering analysis and advanced optical characterizations. These films are incorporated into champion solar cells that achieve a power conversion efficiency of 13.3%, with a short‐circuit current density of 18.9 mA cm‐2, an open‐circuit voltage of 0.96 V, and a fill factor of 73.8%. Furthermore, the quasi‐2D absorbing layers show excellent stability in moisture, remaining unchanged after hundreds of hours. In addition, 2T is compared with the more common ligands butylammonium and phenylethylammonium in this solvent system to develop heuristics and deeper understanding of how to incorporate large ligands into stable photovoltaic devices. [ABSTRACT FROM AUTHOR]

Published
2023
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37. High-Spatial-Resolution Quantitative Chemomechanical Mapping of Organic Composite Cathodes for Sulfide-Based Solid-State Batteries

Author

Ai, Qing, primary, Chen, Zhaoyang, additional, Zhang, Boyu, additional, Wang, Fan, additional, Zhai, Tianshu, additional, Liu, Yifeng, additional, Zhu, Yifan, additional, Terlier, Tanguy, additional, Fang, Qiyi, additional, Liang, Yanliang, additional, Zhao, Lihong, additional, Wu, Chaoshan, additional, Guo, Hua, additional, Fan, Zheng, additional, Tang, Ming, additional, Yao, Yan, additional, and Lou, Jun, additional

Published
2023
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38. Strong Interlayer Coupling and Long-Lived Interlayer Excitons in Two-Dimensional Perovskite Derivatives and Transition Metal Dichalcogenides van der Waals Heterostructures

Author

Liang, Jia, primary, Ai, Qing, additional, Wen, Xiewen, additional, Tang, Xiuyu, additional, Zhai, Tianshu, additional, Xu, Rui, additional, Xiang, Zhang, additional, Fang, Qiyi, additional, Nguyen, Christine, additional, Liu, Yifeng, additional, Zhu, Hanyu, additional, Terlier, Tanguy, additional, Wiederrecht, Gary P., additional, Ajayan, Pulickel M., additional, Qian, Xiaofeng, additional, and Lou, Jun, additional

Published
2023
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40. Direct Synthesis of Highly Siliceous ZnO-FAU Zeolite with Enhanced Performance in Hydrocarbon Cracking Reactions

Author

Parmar, Deependra, Mallette, Adam J., Linares, Noemi, Saslow, Sarah A., Terlier, Tanguy, Strohm, James J., Barber, Lee P., Dai, Heng, García-Martínez, Javier, Rimer, Jeffrey D., Universidad de Alicante. Departamento de Química Inorgánica, and Laboratorio de Nanotecnología Molecular (NANOMOL)

Subjects
Zeolite, General Chemical Engineering, Zinc oxide, Biomedical Engineering, Hydrothermal stability, General Materials Science, Catalyst, Faujasite
Abstract

The hydrothermal stability and catalytic activity of zeolite Y (faujasite, FAU) is highly dependent on its composition. High silicon content is often desirable for catalytic applications; however, direct synthesis of faujasite with high silicon content (Si/Al > 2.5) is nontrivial. Here, we present an organic-free synthesis of FAU-type zeolite with Si/Al = 3.4 using zinc oxide as a modifier. A combination of spectroscopy and microscopy techniques confirms that ZnO is well-distributed within zeolite pores as extra-framework species, and the nature of these species differs from bulk ZnO and framework zinc in Zn-FAU crystals. We demonstrate that the increased Si/Al ratio leads to improved hydrothermal stability, while catalytic cracking of 1-hexene and cumene show that ZnO-FAU exhibits a significantly longer lifetime compared to in-house and commercial zeolite Y. Collectively, this study presents a facile and efficient method to prepare more siliceous FAU with enhanced catalytic performance. J.D.R. received funding primary from the National Science Foundation (Award DMR-2005201) and additional support from The Welch Foundation (Award E-1794). We also wish to thank Albemarle Corporation for their support of this work. J.G.M. and N.L. received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No. 872102 and the Spanish MINECO and AEI/FEDER, UE, through Project ref. RTI2018-099504-B-C21. N.L. also acknowledges the University of Alicante support (UATALENTO17-05). ToF-SIMS analysis was carried out with support provided by the National Science Foundation (Award CBET-1626418). This work was conducted in part using resources of the Shared Equipment Authority at Rice University. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science user facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. The authors thank Mahalingam Balasubramanian from APS Sector 20 (now at Oak Ridge National Laboratory) for collecting the EXAFS dataset.

Published
2022

48. Amination of Boron-Doped Diamond Surfaces

Author

Li, Chenxi, primary, Oliveira, Eliezer F., additional, Zhang, Xiang, additional, Biswas, Abhijit, additional, Roy, Soumyabrata, additional, Puthirath, Anand B., additional, Ruzmetov, Dimitry A., additional, Neupane, Mahesh R., additional, Weil, James D., additional, Birdwell, A. Glen, additional, Ivanov, Tony G., additional, Terlier, Tanguy, additional, Gray, Tia, additional, Kannan, Harikishan, additional, Vajtai, Robert, additional, Galvao, Douglas S., additional, and Ajayan, Pulickel M., additional

Published
2022
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