| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Gold Nanostar-Perovskite Hybrid System for Flexible High-Performance Graphene Photodetectors |
| 초록 |
Hybrid materials in photodetectors(PDs) can give synergistic effect, enhancing each optoelectronic properties. Here, we describe hybrid graphene PDs introducing of strong light trapping, and hot electron transfer effects of gold nanostars (GNSs) and efficient charge carrier transfer of perovskite light absorption material. Hybrid GNSs and perovskite decorated perovskite-based graphene PDs exhibit considerably enhanced photo-responsive properties with a photo responsivity of 5.90 × 104 A W−1 and specific detectivity of 1.31 × 1013 Jones, which are comparable to commercialized inorganic material based devices. Furthermore, the flexible 10 × 10 PD array shows excellent physical stabilities and a well-resolved mapped image of optical signal. This work provides a new flexible and high performance photo detecting systems, which can be further explored in various photography and biometric sensors. |
| 저자 |
이정훈1, 이윤호2, 박승영3, 문정호4, 원유상5, 노준석6, 고현협7, 오준학8
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| 소속 |
1School of Chemical and Biological Engineering, 2Institute of Chemical Processes, 3Seoul National Univ., 4Center for Advanced Soft Electronics, 5Pohang Univ. of Science and Technology (POSTECH), 6School of Energy and Chemical Engineering, 7Ulsan National Institute of Science and Technology (UNIST), 8Department of Chemical Engineering |
| 키워드 |
Graphene; Perovskite; Gold nanostar; Plasmonic effect; Flexible sensor; Photodetector array
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| E-Mail |
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