Alkyl end group Modification of Benzotriazole and Thiophene Containing Conjugated Polymers

Date

2016-07-21

Author

Cevher, Şevki Can
Keleş, Duygu
Özdemir Hacıoğlu, Şerife
Toppare, Levent Kamil
Çırpan, Ali

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This study focused on modifying the alkyl‐end‐group of benzotriazole and thiophene containing conjugated polymers. Introducing a moiety with struc‐turally rigid and tendency to enhance the π‐π stacking and also absorption in the high energetic region, influence the both electronic and optic properties of the conjugated polymers. Stille cross coupling chemical polymerization method was performed to synthesize the polymer contains: benzotriazole and bisthiophene. Characterizations of polymers were done in terms of molecular weight (GPC), absorption wavelengths (Uv‐vis spec.), and electronic properties (CV). Broad absorption of polymer, which was located at λmax 582 and 533 nm, was found as great candidate for optoelectronic devices. However HOMO and LUMO levels play an important role for photovoltaic devices. The preliminary studies showed that low Voc and FF values as 0.4 V and 0.36 respectively. Without further optimizations Polymer:PCBM bulk heterojunction photovoltaic cell performance was at most 0.48% efficiency

Subject Keywords

Polymers, Solar cell, Benzotriazole

URI

https://hdl.handle.net/11511/85723

Conference Name

46th IUPAC World Polymer Congress (MACRO 2016) (17-21 July 2016)

Collections

Department of Chemistry, Conference / Seminar

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Citation Formats

Ş. C. Cevher, D. Keleş, Ş. Özdemir Hacıoğlu, L. K. Toppare, and A. Çırpan, “Alkyl end group Modification of Benzotriazole and Thiophene Containing Conjugated Polymers,” presented at the 46th IUPAC World Polymer Congress (MACRO 2016) (17-21 July 2016), İstanbul, Turkey, 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/85723.