화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.26, No.13, 1193-1199, December, 2018
DOI10.1007/s13233-019-7015-8  Export Citation
Two TPD-Based Conjugated Polymers: Synthesis and Photovoltaic Applications as Donor Materials
Ji Eun Lee, Yu Jin Kim1, Jisu Hong1, Xinwei Wu, Moon Chan Hwang2, Soon-Ki Kwon2, †, Tae Kyu An3, †, and Yun-Hi Kim†
  • Department of Chemistry and RINS, Gyeongsang National University, Jinju 52828, Korea
  • 1POSTECH Organic Electronics Laboratory, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Korea
  • 2Department of Materials Engineering and Convergence Technology and ERI, Gyeongsang National University, Jinju 52828, Korea
  • 3Department of Polymer Science & Engineering and Department of IT Convergence, Korea National University of Transportation, 50 Daehak-Ro, Chungju 27469, Korea
E-mail:, ,
Two conjugated thienopyrrolodione-thiophene-vinyl-thiophene (TPDTVT)-based polymers, with one of them having an additional cyano (CN) group attached to the TVT building block, are synthesized and incorporated in photovoltaic device as electron-donating materials. Both TPD-TVT and TPD-TVTCN showed good thermal stability and appropriate solubility in chlorinated solvents, but they exhibited quite different optoelectrochemical and photovoltaic properties. The stronger intermolecular interactions of TPD-TVTCN, compared to TPD-TVT, lead to enhanced aggregation in blends with PC71BM. The domain sizes within 15-20 nm and improved molecular packing in TPD-TVTCN:PC71BM blend films result in better photovoltaic performance of TPD-TVTCN:PC71BM device compared to the device employing TPD-TVT.
Keywords:bulk heterojunction solar cells;polymer solar cells;polymer donors;thienopyrrolodione;blend morphology
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