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Comparative study of light and thermal induced degradation for both fullerene and non-fullerene based organic solar cells

Abstract

Solution processed organic solar cells (OSCs) have becoming a promising renewable energy technology these years. The burn-in degradation which cause a performance reduction at a very intial stage for OSCs needs to be understood and investigated thoroughly. In this work, for the first time we have conducted a comparative study of light and thermal induced degradation during the burn-in process. As revealed in the estimation of Urbach energy, both light and thermal degradation created an increased energetic disorder. However, the following characterisaiton such as steady-state photoluminescence (PL), time-resolved photoluminescence (TRPL) and capacitance-voltage (C-V) indicates that the mechanism behind these two types of degradation is very different. The loss in light degradation was found more related to its degraded energy transfer ability, exition dissociation ability and increased non-radiative recombination. Whereas, the loss in thermal degradation was found more related to the reduced current extraction ability and increased leakage current.

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Publication details

The article was received on 21 Nov 2018, accepted on 08 Jan 2019 and first published on 09 Jan 2019


Article type: Paper
DOI: 10.1039/C8SE00567B
Citation: Sustainable Energy Fuels, 2019, Accepted Manuscript
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    Comparative study of light and thermal induced degradation for both fullerene and non-fullerene based organic solar cells

    L. Duan, H. Yi, Y. Zhang, F. Haque, C. Xu and A. Uddin, Sustainable Energy Fuels, 2019, Accepted Manuscript , DOI: 10.1039/C8SE00567B

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