| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ,Ⅱ |
| 제목 |
Effective Dark Current Suppression of Organic Near-Infrared Photodetectors using Non-Fullerene Acceptors |
| 초록 |
Near-infrared organic photodetectors(NIR OPDs) have attracted considerable attention as next-generation energy devices because of their low-cost fabrication, low-weight, and ease of fabrication using a solution process. In this study, organic bulk heterojunction(BHJ) photodetectors were fabricated and OPDs were fabricated by mixing a Near-infrared (NIR)-absorbing conjugated polymer Diketopyrrolopyrrole(DPP) electron donor and electron acceptor. The photoelectric effect was compared and analyzed by comparing the fullerene(PC71BM) and non-fullerene(ITIC) conjugated single molecule as an electron acceptor. Through electrical and morphological analysis, the characteristics of NIR organic photoelectric devices that vary depending on the electron acceptor are compared. The results presented here demonstrate that utilizing a non-fullerene acceptor for BHJ-type NIR OPDs is evidently a strategic approach for the simultaneous achievement of the low dark current and high-detectivity of NIR OPDs. |
| 저자 |
은형주1, 계효진2, 김다희1, 진인수3, 정재웅3, 고서진4, 허준석1, 김봉기2, 김종현1
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| 소속 |
1아주대, 2건국대, 3경희대, 4한국화학(연) |
| 키워드 |
organic near-infrared photodetector; conjugated polymers; non-fullerene acceptor; dark current; bulk heterojunction
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| E-Mail |
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