Introduction of Li into Ag-Based Noncentrosymmetric Sulfides for High-Performance Infrared Nonlinear Optical Materials

被引：35

作者：

Zhou, Wenfeng ^{[1
]}

Yao, Wen-Dong ^{[1
]}

Zhang, Qing ^{[1
]}

Xue, Huaiguo ^{[1
]}

Guo, Sheng-Ping ^{[1
]}

机构：

[1] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China

来源：

INORGANIC CHEMISTRY | 2021年 / 60卷 / 07期

基金：

中国国家自然科学基金;

关键词：

BAND-GAP; GE; SI; SE; CHALCOGENIDE; CRYSTALS; SN;

D O I：

10.1021/acs.inorgchem.1c00205

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The understanding of the structure-performance relationship is beneficial to establish the balance between the second-harmonic generation (SHG) response and laser-induced damage threshold (LIDT) in exploring novel nonlinear optical (NLO) materials. In this work, a facile strategy of partial Li co-occupation with Ag is employed to investigate the structures and NLO performances of the four Ag-based noncentrosymmetric chalcogenides Ag2In2SiS6 (1), (Li0.79Ag1.21)In2SiS6 (2), (Li1.12Ag0.88)In2SiS6 (3), and (Li1.44Ag0.56)In2SiS6 (4). Both the SHG intensity and LIDT are improved as the Li element is introduced, among which 4 exhibits the optimal phase-matchable SHG response of similar to 0.8 x AgGaS2 (AGS) and a high LIDT of 4 x AGS. These NLO activities are explained by theoretical calculation and the dipole moment analysis.

引用

页码：5198 / 5205

页数：8

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