太赫兹辐射
太赫兹光谱与技术
材料科学
声子
光电子学
光谱学
激子
载流子
钙钛矿(结构)
超短脉冲
太赫兹时域光谱学
光子学
卤化物
激光器
物理
光学
凝聚态物理
化学
量子力学
无机化学
结晶学
作者
Daming Zhao,Elbert E. M. Chia
标识
DOI:10.1002/adom.201900783
摘要
Abstract Terahertz time‐domain spectroscopy is a noncontact, coherent technique that can probe dynamics of carriers, phonons and excitons, and the interplay among these degrees of freedom, which determines the functionalities of the system. In the past few years, lead‐halide perovskites have shown to be a promising class of materials in the areas of solar cells, light emitting diodes, lasers, photodetectors, and field‐effect transistors. In these electronic and photonic devices, the knowledge of the dynamics of charge carriers and other low‐energy excitations is crucial to understand the underlying physics that ultimately determines the device performances. Here, some of the most representative works in the area of halide perovskite research using terahertz time‐domain spectroscopy and time‐resolved terahertz spectroscopy are reviewed, highlighting the power of ultrafast terahertz techniques on this class of material system.
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