1. Ionic thermoelectric paper
- Author
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Hjalmar Granberg, Maryam Shahi, Magnus Berggren, Jonas Sundström, Joshua Schlueter, Xavier Crispin, Dan Zhao, Jesper Edberg, Joseph W. Brill, Ujwala Ail, Ali Naderi, Fei Jiao, and Tom Lindström
- Subjects
Materials science ,NFC ,Ionic bonding ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,flexible electronics ,thermoelectricity ,Polystyrene sulfonate ,chemistry.chemical_compound ,Seebeck coefficient ,Polymer chemistry ,Thermoelectric effect ,new material ,General Materials Science ,polyelectrolyte ,Renewable Energy, Sustainability and the Environment ,paper ,Pappers-, massa- och fiberteknik ,General Chemistry ,Kemi ,Paper, Pulp and Fiber Technology ,021001 nanoscience & nanotechnology ,Thermoelectric materials ,Flexible electronics ,Polyelectrolyte ,0104 chemical sciences ,Thermoelectric generator ,Chemical engineering ,chemistry ,Chemical Sciences ,0210 nano-technology ,nanofibrillated cellulose - Abstract
Ionic thermoelectric materials, such as polyelectrolyte like polystyrene sulfonate sodium (PSSNa), constitute a new class ofmaterial attracting interest due to their large Seebeck coefficient and the possibility to be used in ionic thermoelectricsupercapacitors (ITESCs) and field effect transistors. However pure polyelectrolyte membranes are not robust neitherflexible. In this article, we demonstrate the preparation of ionic thermoelectric paper by a simple, scalable and cost-effectivemethod. After composite with nanofibrillated cellulose (NFC), the resulting NFC-PSSNa paper is flexible and mechanicallyrobust; which is desirable of using roll-to-roll processes. The robust thermoelectric paper NFC-PSSNa combines high ionicconductivity (9 mS/cm), high ionic Seebeck coefficient (8.4 mV/K) and low thermal conductivity (0.75 Wm-1K-1) at 100 RH%,resulting in overall figure-of-merit of 0.025 at room temperature slightly better than the PSSNa. Enabling flexibility androbustness by compositing with cellulose constitutes an advance for scaling up the manufacturing of ionic thermoelectricsupercapacitors; but also enables new applications for conformable thermoelectric devices and flexible electronics Funding agencies: European Research Council (ERC Starting Grant) [307596]; Swedish Foundation for Strategic Research (SSF); Knut and Alice Wallenberg foundation (KAW); Swedish Energy Agency; Advanced Functional Materials Centre at Linkoping University; United States Nation
- Published
- 2017