双手性分子诱导点亮了过氧化物纳米晶体的圆偏振辐射

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter Pub Date : 2024-04-03 DOI:10.1016/j.matt.2024.02.005

Hua-Li Liu , Shuang-Quan Zang

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引用次数: 0

摘要

有机-无机卤化物包晶纳米晶体中的手性诱导已经引起了广泛关注，然而在没有高磁场或低温环境下产生圆偏振发光仍然是一项艰巨的任务。通过在晶格中加入手性间隔物，并在晶体表面加入另一种手性配体，Liu 等人报告说，由于光生电荷载流子的不对称光吸收和延迟自旋翻转增强，混合相高闪锌矿纳米晶体的极化度达到了 5.2%。这项工作为利用手性包晶纳米闪烁体进行原位不对称光化学反应铺平了道路。

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Bichiral molecule induction lightens circularly polarized emissions of perovskite nanocrystals

Chirality induction in organic-inorganic halide perovskite nanocrystals has attracted substantial attention, yet producing circularly polarized luminescence without high magnetic fields or cryogenic settings remains an exacting task. By incorporating a chiral spacer into the crystal lattice and another chiral ligand on the crystal surface, Liu et al. report a polarization degree of 5.2% in mixed-phase perovskite nanocrystals arising from enhanced asymmetric light absorption and delayed spin-flip of photogenerated charge carriers. This work paves the way toward in situ asymmetric photochemical reactions using chiral perovskite nanoscintillators.

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来源期刊

Matter MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

26.30

自引率

2.60%

发文量

367

期刊介绍： Matter, a monthly journal affiliated with Cell, spans the broad field of materials science from nano to macro levels,covering fundamentals to applications. Embracing groundbreaking technologies,it includes full-length research articles,reviews, perspectives,previews, opinions, personnel stories, and general editorial content. Matter aims to be the primary resource for researchers in academia and industry, inspiring the next generation of materials scientists.