Nonlinear Optical Crystal Rb4Sn3Cl2Br8: Synthesis, Structure, and Characterization

被引：21

作者：

Gong, Pifu ^{[1
]}

Luo, Siyang ^{[1
]}

Yang, Yi ^{[1
,3
]}

Liang, Fei ^{[1
,3
]}

Zhang, Shengzi ^{[1
,3
]}

Zhao, Sangen ^{[2
]}

Luo, Junhua ^{[2
]}

Lin, Zheshuai ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

CRYSTAL GROWTH & DESIGN | 2018年 / 18卷 / 01期

关键词：

SURFACE CHEMICAL-STABILITY; ELECTRONIC-STRUCTURE; MIXED HALIDE; PEROVSKITES; HOLE; GROWTH; TIN; SEMICONDUCTOR; LENGTHS;

D O I：

10.1021/acs.cgd.7b01373

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new Sn-based halide compound, Rb4Sn3Cl2Br8, is synthesized by hydrothermal method. This compound crystallizes in orthorhombic noncentrosymmetric space group of Cmc2(1), and the structure is composed of one-dimensional [Sn4Cl2Br8](1)(infinity) chains elongated in parallel to the a-axis. Interestingly, in the [Sn4Cl2Br8](1)(infinity) chains the [SnBr5] and [SnCIBr4] groups hold pyramidal configurations which are found for the first time in Sn-based metal halides. Rb4Sn3Cl2Br8 exhibits a high thermal stability (up to 270 degrees C) and a relatively large bandgap of 2.82 eV. This compound shows a phase-matchable powder second harmonic generation response of 0.5 times of KH2PO4 (KDP), and is the first phase-matchable Sn-based halide nonlinear optical material. The discovery of Rb4Sn3Cl2Br8 will be beneficial to further phase-matchable nonlinear optical materials exploration in Sn-based halides.

引用

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页码：380 / 385

页数：6

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