Exploring the High-Temperature Window of Operation for Organic Photovoltaics: A Combined Experimental and Simulations Study
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| Title: | Exploring the High-Temperature Window of Operation for Organic Photovoltaics: A Combined Experimental and Simulations Study |
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| Authors: | Negash, Asfaw, Hustings, Jeroen, Robert, Allyson, Wolkeba, Zewdneh Genene, 1983, Yilma, Desalegn, Schreurs, Dieter, Mathijs, Michiel, Liesenborgs, Jori, Van Reeth, Frank, Vandewal, K., Mammo, Wendimagen, Admassie, Shimelis, Maes, Wouter, Manca, Jean |
| Source: | Advanced Materials for Optics and Electronics. 34(6) |
| Subject Terms: | simulations, organic photovoltaics, high-temperature operation |
| Description: | The global climate change negatively affects the photovoltaic performance of traditional solar cell technologies. This article investigates the potential of organic photovoltaics (OPV) for high-temperature environments, ranging from urban hot summers (30—40 °C) and desert regions (65 °C) up to (aero) space conditions (130 °C), the thermal window in which OPV can operate. The approach is based on a combination of experiments and simulations up to 180 °C, moving significantly beyond the conventional temperature ranges reported in the literature. New 2H-benzo[d][1,2,3]triazole-5,6-dicarboxylic imide-based copolymers with decomposition onset temperatures above 340 °C are used for this study, in combination with non-fullerene acceptors. Contrary to their inorganic counterparts, OPV devices show a positive temperature coefficient up to ≈90 °C. At temperatures of 150 °C, they are still operational, retaining their room temperature efficiency. Complementary simulations are performed using an in-house developed software package that numerically solves the drift-diffusion equations to understand the general trends in the obtained current–voltage characteristics and the materials’ intrinsic behavior as a function of temperature. The presented methodology of combined high-temperature experiments and simulations can be further applied to investigate the thermal window of operation for other OPV material systems, opening novel high-temperature application routes. |
| File Description: | electronic |
| Access URL: | https://research.chalmers.se/publication/538125 https://research.chalmers.se/publication/538125/file/538125_Fulltext.pdf |
| Database: | SwePub |
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