Disconnection Enhances the Second Harmonic Generation Response: Synthesis and Characterization of Ba23Ga8Sb2S38

被引：234

作者：

Chen, Mei-Chun ^{[1
,2
]}

Wu, Li-Ming ^{[1
]}

Lin, Hua ^{[1
,2
]}

Zhou, Liu-Jiang ^{[1
,2
]}

Chen, Ling ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 14期

基金：

中国国家自然科学基金;

关键词：

ELECTRONIC-STRUCTURE; BAND-GAP; CRYSTAL; ABSORPTION; COMPOUND; PHASES;

D O I：

10.1021/ja300249n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An unusual zero-dimensional quaternary sulfide, Ba23Ga8Sb2S38, that crystallizes in the non-centrosymmetric polar space group Cmc2(1) was discovered by solid-state reaction of an elemental mixture. The involvement of a second building unit consisting of SbS3 pyramid and constituting 20% of the structure helped to realize the disconnection of the asymmetric GaS4 tetrahedra. Such a disconnection leads to the strongest powder second harmonic generation intensity in the IR region among sulfides to date, similar to 22 times that of commercial AgGaS2 at an incident laser wavelength of 2.05 mu m with the same particle size of 46-74 mu m.

引用

页码：6058 / 6060

页数：3

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