| 학회 | 한국화학공학회 |
| 학술대회 | 2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 | 28권 1호, p.39 |
| 발표분야 | 신진 연구자 심포지엄 |
| 제목 | Quantum Dot Materials for Infrared Light-Harvesting and Detection |
| 초록 | Colloidal quantum dots (CQDs) are compelling semiconductor materials for optoelectronic applications owing to their tunable bandgap, solution-processibility, and ambient stability. Of chief importance is the ability to tune their absorption and emission into the infrared, a region of interest in optical communications, night vision, biological imaging, and infrared photovoltaics. III-V compound semiconductors have been used in the range beyond silicon’s bandgap (1.12 eV), however, highly reactive precursors, high-reaction temperatures, and high-quality vacuum systems for the fabrication limit their applications. Here we introduce CQDs as promising infrared materials that can replace conventional infrared materials including III-V semiconductors. Specifically, we fabricate infrared CQD solar cells that can add extra efficiency to silicon solar cells. We also show the CQD photodetector responding in ~1550 nm with external quantum efficiency of 70%, which can potentially replace the conventional III-V semiconductors used in the SWIR range. |
| 저자 | 최민재 |
| 소속 | 동국대 |
| 키워드 | |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
