| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.1465 |
| 발표분야 |
[주제 12] 화학공학일반(부문위원회 발표) |
| 제목 |
Flexible Dual Hybrid graphene photodetectors utilizing MAPbI3 perovskites and gold nanostar |
| 초록 |
Hybrid materials in optoelectronic devices can provide synergistic effects that enhance the properties of each component. Here, flexible graphene hybrid photodetectors utilizing hierarchical gold nanostars and perovskites are developed for strong light trapping with hot electron transfer and efficient light harvesting characteristics, respectively. While pristine graphene photodetectors do not exhibit discernible photosensing properties because of low photon absorption and fast charge carrier recombination, graphene photodetectors functionalized with GNSs and densely covered perovskite layer exhibit extraordinary photo-responsive properties with a photo-responsivity (R) of 5.90 × 104 A W−1 and specific detectivity (D*) of 1.31 × 1013 Jones, which are the highest among perovskite-functionalized graphene photosensors reported so far. This work provides a new design platform for flexible and high-performance photo-detecting systems. |
| 저자 |
원유상1, 이윤호1, 박승영2, 문정호3, 하재환4, 박하영1, 김현욱1, 노준석5, 고현협6, 오준학1
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| 소속 |
1서울대, 2KRICT / UNIST, 3POSTECH 화학공학과 / POSTECH 기계공학과, 4POSTECH 화학공학과, 5POSTECH 기계공학과, 6UNIST |
| 키워드 |
촉매(Catalyst) |
| E-Mail |
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| 원문파일 |
초록 보기 |
