Ultrafast dynamics in perovskite-based optoelectronic devices

作者：Shaokuan Gong, Yuling Huang, Xuemeng Yu, Qiushi Hu, Jingjing Liu, Jiazhi Meng, Yifan Wen, Xihan Chen · 发表于：Cell Reports Physical Science · 年份：2023 · DOI：10.1016/j.xcrp.2023.101580 · 被引用次数：17 · 研究领域：Perovskite Materials and Applications、Semiconductor Quantum Structures and Devices、Optical properties and cooling technologies in crystalline materials

Halide-perovskite-based materials are rising stars for optoelectronic applications. The key for optoelectronic device development is the photogenerated carrier dynamics, which directly describes the motion of photogenerated electrons and holes. A fundamental understanding of the carrier dynamics can help researchers gain deeper insight into the light-matter interaction. The generation and movement of charge carriers can be on the order of femto- and pico-second (ultrafast) timescales, which pose challenges for detection methods. Recent development in transient spectroscopic techniques enable the understanding of charge-carrier dynamics. In this perspective, we introduce several ultrafast spectroscopic methods that investigate total carrier dynamics, hot-carrier cooling dynamics, interfacial carrier transport dynamics, and carrier spin relaxation dynamics in perovskite optoelectronics. Through these investigations, we provide our perspective on the future development of perovskite-based optoelectronics.