Title | Optical Integrated Perovskite to Silicon for Enhanced Performance
Date | Tuesday, June 4, 2024, at 9:30 a.m. (UTC +2)
Speaker | Prof. Baoquan Sun (Soochow University, China)
Abstract | Lead-free halide double perovskites, have not been deemed useful thus far due to the absence of high photoluminescence quantum yield (PLQY) examples and large bandgaps. Herein, we demonstrate the doping strategy for the benchmark material of Cs2NaInCl6, achieving blue emission with near-unity PLQY and the lowest bandgap of 1.24 eV. In addition, we would like to discuss some strategies to mitigate parasitic absorption of silicon solar integrated with luminescent converter issues. We showed that part of short wavelength sunlight can be converted into a polarization electrical field by perovskite particles, which strengthens asymmetry in heterojunction solar cells through the molecule alignment process. Then, incorporating luminescent perovskite and quantum dots with high quantum yields as light converters can also enhance power conversion efficiency.
Références :
[1] Liu, Yan; Dai, Xing; Zeng, Xuelian; Yuan, Xianrong; Wang, Yanan; Song, Yuhang; Chen, Haoyu; Zhang, Chao; Wang, Yong; Wan, Li; Zou, Yatao; Ning, Weihua; Sun, Baoquan, High-Efficient Blue Emission and Bandgap Engineering from Jahn–Teller Distorted Halide Double Perovskites. Advanced Optical Materials 2024, 12 (3), 2301576.
[2] Jiang C.; Zhang G.; Hong Z.; Chen J.; Li Y.; Yuan X.; Lin Y.; Yu C.; Wang T.; Song T.; Wang Y.; Sun B., Colored Silicon Heterojunction Solar Cells Exceeding 23.5% Efficiency Enabled by Luminescent Down-Shift Quantum Dots. Advanced Material 2023, 35 (6), e2208042.
