Chiral 0D hybrid lead-bromide perovskites with strong nonlinear chiroptical properties†

IF 6 2区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Materials Chemistry Frontiers Pub Date : 2024-11-15 DOI:10.1039/D4QM00627E

Huan Yang, Bing Sun, Junjie Guan, Shun-Da Wu, Peihan Wang, Qiang Wang, Jialiang Xu and Hao-Li Zhang

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Abstract

Chiral optical materials enable simultaneous linear and nonlinear optical properties and have emerged as a new class of materials desirable for applications in chiroptical information technology. Herein, we developed two pairs of hybrid lead-bromide perovskites (R-/S-APD)PbBr₄ and (1R,2R-/1S,2S-DACH)2PbBr₆·2H₂O, and systematically investigated their linear and nonlinear chiroptical responses. Second-harmonic generation circular dichroism (SHG-CD) measurements reveal a high anisotropy factor (g_SHG-CD) of up to 1.58 for (1S,2S-DACH)₂PbBr₆·2H₂O, which is the highest value among those of the reported chiral perovskites to date. Notably, these perovskites display a high laser damage threshold (LDT) of up to 59.36 GW cm⁻². This study demonstrates that the 0D chiral hybrid lead-bromide perovskite system can simultaneously exhibit both high LDT and g_SHG-CD, thereby opening a new route for the design of high-performance chiral nonlinear optics.

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来源期刊

Materials Chemistry Frontiers Materials Science-Materials Chemistry

CiteScore

12.00

自引率

2.90%

发文量

313

期刊介绍： Materials Chemistry Frontiers focuses on the synthesis and chemistry of exciting new materials, and the development of improved fabrication techniques. Characterisation and fundamental studies that are of broad appeal are also welcome. This is the ideal home for studies of a significant nature that further the development of organic, inorganic, composite and nano-materials.