Temperature-Responsive Photoluminescence of 1D Chiral Lead Halide Perovskites with Highly Anisotropic Second Harmonic Generation

IF 5.5 1区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chinese Journal of Chemistry Pub Date : 2025-01-31 DOI:10.1002/cjoc.202401118

Ya-Si Fang, Yi-Fan Guo, Xiao-Gang Chen, Zhong-Xia Wang, Yan Qin

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Abstract

Chiral perovskites provide an ideal platform for the construction of linear and nonlinear optical materials due to their diverse chemical variability, structural tunability, and intrinsic non-centrosymmetricity which have broad application prospects for next-generation optoelectronic devices. In this work, a pair of 1D chiral lead halide perovskites (R/S-4MeOPEA)PbCl₃ (4MeOPEA = (4-methoxyphenyl)ethylamine) were synthesized, and characterized systematically. Crystal structure analysis revealed that the one-dimensional (1D) inorganic chain formed by face-shared lead chloride octahedra was separated by the chiral organic spacers. The distorted octahedra endows them with broadband bluish-white light emission centered covering the range 350—700 nm with a width of 104 nm. In addition, the highly anisotropic second-harmonic generation (SHG) with a near unity polarization ratio was observed. This work presents a fresh example of 1D chiral perovskite with exotic linear and nonlinear optical properties, which could provide a new footstone for further optoelectronic devices.

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具有高各向异性二次谐波产生的一维手性卤化铅钙钛矿的温度响应光致发光

手性钙钛矿具有丰富的化学变异性、结构可调性和固有的非中心对称性，为构建线性和非线性光学材料提供了理想的平台，在下一代光电器件中具有广阔的应用前景。本文合成了一对1D手性卤化铅钙钛矿（R/S-4MeOPEA）PbCl3 （4MeOPEA =（4-甲氧基苯基）乙胺），并对其进行了系统表征。晶体结构分析表明，由面共氯铅八面体形成的一维无机链被手性有机间隔物分隔开。扭曲的八面体使其具有宽104 nm，中心覆盖350-700 nm范围的宽带蓝白光发射。此外，还观察到极化比接近1的高各向异性二次谐波（SHG）。这项工作提出了具有奇异线性和非线性光学性质的一维手性钙钛矿的新例子，可以为进一步的光电器件提供新的基石。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chinese Journal of Chemistry 化学-化学综合

CiteScore

8.80

自引率

14.80%

发文量

422

审稿时长

1.7 months

期刊介绍： The Chinese Journal of Chemistry is an international forum for peer-reviewed original research results in all fields of chemistry. Founded in 1983 under the name Acta Chimica Sinica English Edition and renamed in 1990 as Chinese Journal of Chemistry, the journal publishes a stimulating mixture of Accounts, Full Papers, Notes and Communications in English.