| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Narrow Bandgap Conjugated Polymers and Molecular Semiconductors for Near-Infrared Photovoltaics and Photodetectors |
| 초록 |
Solution-processed near-infrared (NIR) organic photodiodes have attracted recently extensive attention due to their potential applications in next-generation optoelectronics such as semi-transparent solar cells and NIR photodetectors. Narrow bandgap (＜1.4 eV) conjugated polymers and molecular semiconductors are relevant as key components in donor:acceptor bulk-heterojunction blends for the fabrication of NIR photodiodes. However, the benefits of NIR organic semiconductors remain comparatively unexplored. A critical challenge arises as one decreases optical bandgaps (Egopt) with respect to the counterbalance between exciton splitting and charge recombination and voltage loss in bulk-heterojunction blends. We show a rational approach to design and synthesize narrow bandgap conjugated polymer donors and nonfullerene acceptors with tailored Egopt and energy band alignment for reducing energy losses in NIR organic bulk-heterojunction devices. |
| 저자 |
이재원 |
| 소속 |
충남대 |
| 키워드 |
- |
| E-Mail |
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