화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.63, 191-200, July, 2018
DOI10.1016/j.jiec.2018.02.015  Export Citation
Effect of non-covalent interactions on molecular stacking and photovoltaic properties in organic photovoltaics
Seung Jun Nam, Sung Jae Jeon, Yong Woon Han, 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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The conjugated structures of donor.acceptor (D.A) type with sulfur (S), nitrogen (N) and oxygen (O) atoms aid to close packing each other in the backbone by non-covalent interactions. Furthermore, noncovalent interactions are exerted three dimensionally and affect various properties. To know this effects, we introduced different S, N and O contents as benzothiadiazole (BT) and dithienophenazine (DTPz, up or down direction of S) units on each polymer backbone. Among the three polymers, P2 with up direction of S showed an open-circuit voltage (Voc) of 0.90 V, fill factor (FF) of 54.7% and reached best power conversion efficiency (PCE) of 4.8%.
Keywords:Organic photovoltaics (OPVs);Non-covalent interaction;Face-on orientation;Dithienophenazine (DTPz);Benzothiadiazole (BT)
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