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High Stability of Benzothiophene and Benzotriazole Containing Medium Band GapPolymer for Inverted Organic Solar Cell Application
Date
2015-05-11
Author
Ünay, Hande
Hızalan Özsoy, Gönül
Toppare, Levent Kamil
Çırpan, Ali
Alturk Parlak, Elif
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The improvement of polymer solar cell stability is a challenge for the scientists and has significant implications commercially. In this study, we investigated the stability of a novel P-SBTBDT active material applied in an inverted type solar cell. Detailed stability experiments comprising shelf life, laboratory weathering and outdoor testing were carried out according to ISOS testing guidelines. Shelf life showed that P-SBTBDT solar cells were very stable after 840 h with encapsulation. Although accelerated weathering aging tests are a very harsh, the devices remained stable after the burn-in phase with T50 from 700 to 840 h, with some P-SBTBDT solar cells did not reach T50 in the time span of the test. Degradation tests on the P-SBTBDT solar cells which were carried out under natural solar light indicated that T40 was reached after 840 h. The results of dark, light, damp and dry stability tests showed that most of the degradation was provoked by failure of the encapsulation. The experiments indicated that P-SBTBDT solar cells are sensitive to light and oxygen but are strikingly stable under humid conditions. Further developments for minimizing the degradation effects using UV-filters and better encapsulation are some of the necessary improvements in further research
Subject Keywords
Inverted organic solar cell
,
OPV Stability
,
Life time evaluation testing
,
Degradation
,
Benzotriazole
,
Selenophone
URI
https://hdl.handle.net/11511/74328
Collections
Department of Chemistry, Conference / Seminar
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H. Ünay, G. Hızalan Özsoy, L. K. Toppare, A. Çırpan, and E. Alturk Parlak, “High Stability of Benzothiophene and Benzotriazole Containing Medium Band GapPolymer for Inverted Organic Solar Cell Application,” presented at the E-MRS 2015 Spring Meeting, Lille Grand Palais, 11 - 15 Mayıs 2015, 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/74328.