| 학회 |
한국고분자학회 |
| 학술대회 |
2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
41권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Concentration-Dependent Pyrene-Driven Self-Assembly for Improved Interconnectivity in Benzo[1,2‑b:4,5‑b′]dithiophene (BDT)−Thienothiophene(TT)−Pyrene Copolymers based Polymer Solar Cells |
| 초록 |
We synthesized and investigated a series of benzo[1,2-b:4,5-b′]-dithiophene-based random copolymers according to the content of the pyrene (PY) unit. Concentration-dependent PY-driven self-assembly in the copolymers was systematically studied using various measurements. As the content of Py moiety increased, multiple PY−PY interactions within a few polymer chains were dominant and these interactions led to produce a more ordered phase but less interconnectivity among many polymer chains. A threshold quantity of the Py moieties enabled the Py−Py interactions to propagate over many polymer chains to form a highly interconnected structure, which improved hole transport pathways and the photovoltaic performance of polymer solar cells (5.03 → 7.52%). |
| 저자 |
김민준1, 박태호1, 이상규2, 신원석2, 이종철2
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| 소속 |
1POSTECH, 2KRICT |
| 키워드 |
OPV; Pyrene; Random copolymer; Polymer solar cell; Self-assembly
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| E-Mail |
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