| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-고분자 |
| 제목 |
Flexible High-Performance Graphene Photodetectors Utilizing Hierarchical Gold Nanostars and Perovskites |
| 초록 |
Hybrid materials in optoelectronic devices can provide synergistic effects that enhance the properties of each component. Here, flexible high-performance graphene hybrid photodetectors utilizing hierarchical gold nanostars (GNSs) 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 photodetecting 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 photodetectors reported so far. This work provides a new design platform for flexible and high-performance photo-detecting systems. |
| 저자 |
원유상1, 이윤호2, 박승영3, 문정호4, 하재환1, 이정훈1, 박현규1, 노준석4, 고현협5, 오준학1
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| 소속 |
1서울대, 2삼성디스플레이 / 서울대, 3한국화학(연), 4포항공과대, 5울산과학기술원 |
| 키워드 |
Graphene; Plasmonic Effect; Perovskite Optoelectronic Device; Gold Nanostar
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| E-Mail |
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