发光
铟
手性(物理)
光致发光
圆极化
金属卤化物
量子产额
卤化物
金属
材料科学
激子
光化学
极化(电化学)
化学
光电子学
物理化学
无机化学
物理
光学
凝聚态物理
夸克
量子力学
冶金
Nambu–Jona Lasinio模型
微带线
荧光
手征对称破缺
作者
Zhiyu Wang,Xiaoming Wang,Zhongwei Chen,Yang Liu,Huilin Xie,Jie Xue,Lingling Mao,Yanfa Yan,Haipeng Lu
标识
DOI:10.1002/anie.202215206
摘要
Introducing chirality into the metal-halide hybrids has enabled many emerging properties including chiroptical activity, spin-dependent transport, and ferroelectricity. However, most of the chiral metal-halide hybrids to date are non-emissive, and the underlying mechanism remains elusive. Here, we show a new strategy to turn on the circularly polarized luminescence (CPL) in chiral metal-halide hybrids. We demonstrate that alloying Sb3+ into chiral indium-chloride hybrids dramatically increases the photoluminescence quantum yield in two new series of chiral indium-antimony chlorides. These materials exhibit strong CPL signals with tunable energy and a high dissymmetry factor up to 1.5×10-2 . Mechanistic studies reveal that the emission originates from the self-trapped excitons centered in 5s2 Sb3+ . Moreover, near-ultraviolet pumped white light is demonstrated with a polarization up to 6.0 %. Our work demonstrates new strategies towards highly luminescent chiral metal-halide hybrids.
科研通智能强力驱动
Strongly Powered by AbleSci AI