| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 |
25권 1호 |
| 발표분야 |
포스터-나노 |
| 제목 |
High-performance dual hybrid graphene photodetectors utilizing perovskites and hierarchical gold nanostars |
| 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 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, 하재환3, 박하영1, 김현욱1, 노준석3, 고현협4, 오준학1
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| 소속 |
1서울대, 2KRICT, 3포항공과대, 4울산과학기술원 |
| 키워드 |
Perovskite; Gold Nanostars; Graphene; Photodetectors; Plasmonic effect
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| E-Mail |
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