| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
High-performance dual hybrid perovskite photodetectors utilizing graphenes and gold nanostars |
| 초록 |
Hybrid materials in optoelectronic devices can provide synergistic effects that enhance the properties of each component. Here, flexible high-performance perovskite hybrid photodetectors utilizing gold nanostars and graphenes are developed for strong light trapping with hot electron transfer and efficient light harvesting characteristics, respectively. While pristine perovskite photosensors do not exhibit discernible photodetecting properties because of low photon absorption and fast charge carrier recombination, graphene photosensors functionalized with GNSs and densely covered perovskite layer exhibit extraordinary photo-responsive properties with a photo-responsivity (R) of 5.90 × 104 AW-1 and specific detectivity (D*) of 1.31 × 1013 Jones, which are the highest among graphene-functionalized perovskite photosensors reported so far. This work provides a new design platform for flexible and high performance photo-detecting systems. |
| 저자 |
원유상1, 이윤호2, 박승영3, 문정호4, 하재환4, 이정훈1, 노준석4, 고현협5, 오준학1
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| 소속 |
1서울대, 2삼성디스플레이, 3KRICT, 4포항공과대, 5울산과학기술대 |
| 키워드 |
Perovskite; Graphene; Gold Nanostar; Phodetector
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| E-Mail |
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