| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
대학원생 구두발표(토론I): 미래전자산업에서의 유기전자소재 |
| 제목 |
High-Performance Organic-Graphene Hybrid Photonic Barristors via Cold-Trap-Mediated charge recombination |
| 초록 |
A linearly and highly photosensitive bipolar organic-graphene hybrid photonic barristor operating in a broad dynamic range and bandwidth was fabricated in this study. A solution-processed BHJ comprising PBDB-T and PCBM was used as the model organic photoresponsive layer, and a stack of graphene/SiO2/Si was introduced as the injection-tunable electrode of the photonic barristor. our hybrid photonic barristor simultaneously exhibits a high R of 360 mA/W and D* over 1013 Jones, which surpasses the highest reported performances of organic PDs and show values close to the theoretically predicted ideal behaviors. In particular, the suppressed dark current at low illumination and the cold-trap-mediated charge recombination behavior at high illumination enables a broad dynamic photodetection, with an LDR over 111 dB. Therefore, our approach is possible to improve the performance of organic photodetectors toward predictable ideal limits. |
| 저자 |
임동언1, 조새벽2, 조정호1
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| 소속 |
1연세대, 2성균관대 |
| 키워드 |
Photonics; Recombination; Extraction; Barristor; Bulk Heterojunction
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| E-Mail |
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