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Title: | Exploring the High‐Temperature Window of Operation for Organic Photovoltaics: A Combined Experimental and Simulations Study | Authors: | NEGASH ASSEGDE, Asfaw HUSTINGS, Jeroen ROBERT, Allyson Genene, Zewdneh Yilma, Desalegn SCHREURS, Dieter Mathijs, Michiel LIESENBORGS, Jori VAN REETH, Frank VANDEWAL, Koen Mammo, Wendimagegn Admassie, Shimelis MAES, Wouter MANCA, Jean |
Issue Date: | 2023 | Publisher: | Source: | ADVANCED FUNCTIONAL MATERIALS, 2023 (Art N° 2308666) | Abstract: | 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. | Keywords: | high-temperature operation;organic photovoltaics;simulations | Document URI: | http://hdl.handle.net/1942/42225 | ISSN: | 1616-301X | e-ISSN: | 1616-3028 | DOI: | 10.1002/adfm.202308666 | ISI #: | WOS:001090433600001 | Datasets of the publication: | 10.1002/adfm.202308666 | Rights: | 023 Wiley-VCH GmbH2308666 (1 of 11) | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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Adv Funct Materials-2023-Exploring the High‐Temperature Window of Operation for Organic Photovoltaics .pdf Restricted Access | Published version | 2.57 MB | Adobe PDF | View/Open Request a copy |
UHasselt_Exploring the High Temperature Window of Operation for OPV.pdf | 756.98 kB | Adobe PDF | View/Open |
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