| 학회 |
한국공업화학회 |
| 학술대회 |
2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
26권 1호 |
| 발표분야 |
포스터-에너지저장·변환 |
| 제목 |
Conjugated small-molecule dyes based on malononitrile for organic solar cells |
| 초록 |
Two conjugated small-molecule-dyesbased on indacenodithieno[3,2-b]thiophene (IDTT) and 2-(2-methyl-4H-chromen-4-ylidene)malononitrile(CMCN), named IDTT-CMCN and IDTT-HT-CMCN, have been synthesized and applied inorganic solar cells. A-D-A type small molecules with CMCN can form a powerfulpush-pull structure with effective intramolecular charge transport (ICT) andenhanced optical absorption. Comparatively to IDTT-CMCN, IDTT-HT-CMCNdemonstrates a good solubility and a longer π-conjugation length due to thepresence of 3-hexylthiophene (HT) between the IDTT and CMCN moieties.IDTT-HT-CMCN with a hexylthiophene ring as a π-bridge caused a smaller band gapand improved solubility. As a result, the power conversion efficiency (PCE)reached 7.60% with a short circuit current of 12.7 mA/cm2, opencircuit voltage of 0.94 V, and fill factor of 63.8%. |
| 저자 |
Rahmatia Fitri Binti Nasrun, 손동환, Sabrina Aufar Salma, Qurrotun Ayuni Khoirun Nisa, 노승건, 김주현
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| 소속 |
부경대 |
| 키워드 |
Small molecules; active layer; malononitrile; organic solar cells
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| E-Mail |
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