화학과 특별 세미나가 다음 주 수요일(9월 6일)에 개최됩니다.
많은 참여 부탁드립니다.
제 목 : Light Harvesting and Conversion from Emerging Perovskite Quantum Dots
연 사 : Prof. Jianyu Yuan(Soochow Univ.)
일 시 : 2023년 9월 6일(수) 오전 10시 30분
LIGHT HARVESTING AND CONVERSION FROM EMERGING PEROVSKITE QUANTUM DOTS
1 Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China
* Presenting & Corresponding author (email@example.com)
Nanometer-sized colloidal metal halide perovskite semiconductors have emerged and brought unique opportunities for photovoltaic application due to the high defect tolerance of perovskite and many features that emerge at the nanoscale. Perovskite quantum dots (QDs) or more broadly, nanocrystals (NCs), show high photoluminescence (PL) quantum yields, spectrally tunable bandgap, flexible compositional control, and crystalline strain benefits. Metal halide perovskite nanocrystals are readily synthesized with exceptional optoelectronic quality opening a route for next generation light emitters, as well as exploring LHP physics at the nanoscale. CsPbX3 (X=Cl-, Br-, I-, or mixed halide) QDs exhibit PL tunable from ultraviolet to near-infrared wavelengths by adjusting the halide composition and/or QD size
Since the first report in 2016, CsPbI3 QDs also became a point of interest in PV research. Currently CsPbI3 holds the record efficiency for QD solar cells (16.6%) proving better than any previous QD material composition. This talk will highlight the unique potential of perovskite QD (PQD) solar cells, from synthesis to devices. We will discuss current state of the art and lay out many open opportunities in perovskite QD solar cells, and the related present and future pursuits in QD preparation and device architecture.