纳米团簇
圆极化
圆二色性
发光
材料科学
X射线磁圆二色性
响应度
光电探测器
磁圆二色性
光电子学
结晶学
物理
纳米技术
光学
谱线
化学
微带线
天文
作者
Wei‐Miao He,Jiajia Zha,Zhan Zhou,Yujia Cui,Peng Luo,Lu‐Fang Ma,Chaoliang Tan,Shuang‐Quan Zang
标识
DOI:10.1002/anie.202407887
摘要
Abstract Circularly polarized light (CPL) detection is of great significance in various applications such as drug identification, sensing and imaging. Atomically precise chiral metal nanoclusters with intense circular dichroism (CD) signals are promising candidates for CPL detection, which can further facilitate device miniaturization and integration. Herein, we report the preparation of a pair of optically active chiral silver nanoclusters [Ag 7 (R/S‐DMA) 2 (dpppy) 3 ] (BF 4 ) 3 ( R/S‐Ag 7 ) for direct CPL detection. The crystal structure and molecular formula of R/S‐Ag 7 clusters are confirmed by single‐crystal X‐ray diffraction and high‐resolution mass spectrometry. R/S‐Ag 7 clusters exhibit strong CD spectra and CPL both in solution and solid states. When used as the photoactive materials in photodetectors, R/S‐Ag 7 enables effective discrimination between left‐handed circularly polarized and right‐handed circularly polarized light at 520 nm with short response time, high responsivity and considerable discrimination ratio. This study is the first report on using atomically precise chiral metal nanoclusters for CPL detection.
科研通智能强力驱动
Strongly Powered by AbleSci AI