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Benzotriazole and benzothiadiazole containing conjugated copolymers for organic solar cell applications
Date
2012-03-09
Author
KARAKUS, Melike
APAYDIN, Dogukan Hazar
Yildiz, Dilber Esra
Toppare, Levent Kamil
Çırpan, Ali
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2-Dodecyl benzotriazole (BTz) and benzothiadiazole (BTd) containing copolymers poly(4-(2-dodecyl-2H-benzo[d][1,2,3]triazol-4-yl)benzo[c][1,2,5]thiadiazole (P1), poly(4-(5-(2-dodecyl-7-(thiophen-2yl)-2H-benzo[d][1,2,3]triazol-4-yl)thiophen-2-yl)benzo[c][1,2,5]thiadiazole (P2) and poly(4-(5-(2-dodecyl-7-(4-hexylthiophen-2-yl)-2H-benzo[d] [1,2,3]triazol-4-yl)-3-hexylthiophen-2-yl) benzo[c][1,2,5] thiadiazole (P3) were synthesized via Suzuki polycondensation. We report the application of conjugated copolymers in bulk heterojunction photovoltaic devices. When the copolymers were blended with [6,6]phenyl-C-61-butyric acid methyl ester (PCBM), P2 showed the best performance with an open circuit voltage (V,), a short-circuit current density (J(sc)) and a power conversion efficiency (PCE) of 0.45 V, 3.48 mA cm(-2) and 0.45%, respectively, under AM 1.5G illumination conditions (100 mW cm(-2)). The hole mobilities of the devices were calculated from J-V curves using Space Charge Limited Current (SCLC) method and the maximum mobility value was found to be 3.15 x 10(-5) cm(2) V-1 s(-1) the P2:PCBM blend.
Subject Keywords
Organic Chemistry
,
Polymers and Plastics
URI
https://hdl.handle.net/11511/39079
Journal
POLYMER
DOI
https://doi.org/10.1016/j.polymer.2012.01.030
Collections
Department of Chemistry, Article
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M. KARAKUS, D. H. APAYDIN, D. E. Yildiz, L. K. Toppare, and A. Çırpan, “Benzotriazole and benzothiadiazole containing conjugated copolymers for organic solar cell applications,”
POLYMER
, pp. 1198–1202, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39079.