A New Mixed Halide, Cs2HgI2Cl2: Molecular Engineering for a New Nonlinear Optical Material in the Infrared Region

被引：138

作者：

Zhang, Gang ^{[1
]}

Li, Yanjun ^{[1
]}

Jiang, Kui ^{[1
]}

Zeng, Huiyi ^{[3
]}

Liu, Tao ^{[1
]}

Chen, Xingguo ^{[1
]}

Qin, Jingui ^{[1
]}

Lin, Zheshuai ^{[2
]}

Fu, Peizhen ^{[2
]}

Wu, Yicheng ^{[2
]}

Chen, Chuangtian ^{[2
]}

机构：

[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China

[2] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing Ctr Crystal R&D, Beijing 100190, Peoples R China

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

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 36期

基金：

美国国家科学基金会;

关键词：

IR REGION; CRYSTAL; SHG;

D O I：

10.1021/ja3037299

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new mixed halide, Cs2HgI2Cl2, which contains the highly polar tetrahedron of anion (HgI2Cl2)(2-), has been designed and synthesized by reaction in solution. In its single crystal, the isolated (HgCl2I2)(2-) groups are arranged to form chains. The chains are then further connected into a three-dimensional framework through the Cs atoms that occupy the empty spaces surrounded by halide atoms. All the polar (HgCl2I2)(2-) groups align in such a way that gives a net polarization, leading it to show a phase matchable second harmonic generation (SHG) effect as strong as that of KH2PO4 (KDP) based on the powder SHG measurement. It also displays excellent transparency in the range of 0.4-41 mu m with relatively high thermal stability. A preliminary measurement indicates that its laser-induced damage threshold is about 83 MVV/cm(2), about twice that of AgGaS2. This study demonstrates that Cs2HgI2Cl2 is a promising nonlinear optical material in the infrared region.

引用

页码：14818 / 14822

页数：5

共 42 条

[1]

[Anonymous], 1966, REFLECTANCE SPECTROS

[2] LINEAR AND NONLINEAR OPTICAL PROPERTIES OF ZNGEP2 AND CDSE [J].