화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.46, 304-314, February, 2017
DOI10.1016/j.jiec.2016.10.044  Export Citation
Effect of conjugated 2D-side groups on quinacridone-based copolymers to adjust deep HOMO level for photovoltaics
Hyun Ah Sung, Doo Hun Kim, Tae Ho Lee, Min Hee Choi, Eui Jin Lee, and Doo Kyung Moon†
  • Department of Materials Chemistry and Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea
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Different conjugated 2D-side groups were introduced to polymerize four types of two-dimensional polymers, PQCT-m8Qx, PQCT-mEHQx, PQCT-BT and PQCT-DPP, through a Suzuki coupling reaction. In comparison with the linear polymer which used the same backbone, the two-dimensional (2D) conjugated side chain polymer exhibits the delocalization of its electron clouds due to the extension of the side chain. So, all four polymers showed a low HOMO level, thus showing high VOC. Among the four, the HOMO level of PQCT-BT was the lowest, by -5.63 eV. When manufacturing a device, VOC was 0.92 V, which is the highest.
Keywords:Bulk heterojunction polymer solar cells;Conjugated 2D-side groups;Suzuki coupling reaction;Deep HOMO level
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