| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ,Ⅱ |
| 제목 |
Synthesis of small-molecule-dyes based on ethyl-4H-chromen-4-ylidene malononitrile as electron-withdrawing group for OSCs |
| 초록 |
Two new acceptor-donor-acceptor (A-D-A) type conjugated small molecule donors, denoted as IDTT-CMCN and IDTT-HT-CMCN, based on indacenodithieno[3,2-b]thiophene (IDTT) and 2-(2-methyl-4H-chromen-4-ylidene)malononitrile (CMCN), have been synthesized for application in organic solar cells. In these A-D-A type small-molecules IDTT is the electron donating unit while CMCN is the electron-withdrawing unit. In comparison with IDTT-CMCN, IDTT-HT-CMCN has 3-hexylthiophene (HT) as a π-bridge unit between the IDTT and CMCN moieties to increase the solubility and extend the π-conjugation length. OSCs based on both of these donors and PC71BM as the acceptor were fabricated to investigate the effect of alkylthiophenes on the photovoltaic properties. As a result, the IDTT-HT-CMCN showed a power conversion efficiency (PCE) as high as 7.60% with a short circuit current of 12.7 mA/cm2, open circuit voltage of 0.94 V, and fill factor of 63.8%. |
| 저자 |
아날리아 도라지오 컬만, SABRINA AUFAR SALMA, 손동환, RAHMATIA FITRI BINTI NASRUN, 이근대, 홍성수, 김주현
|
| 소속 |
부경대 |
| 키워드 |
Organic solar cell; 2-(2-methyl-4H-chromen-4-ylidene)malononitrile; donor material
|
| E-Mail |
|
