A New Deep-Ultraviolet Transparent Orthophosphate LiCs2PO4 with Large Second Harmonic Generation Response

被引：345

作者：

Li, Lin ^{[1
,2
]}

Wang, Ying ^{[1
]}

Lei, Bing-Hua ^{[1
,2
]}

Han, Shujuan ^{[1
]}

Yang, Zhihua ^{[1
]}

Poeppelmeier, Kenneth R. ^{[3
]}

Pan, Shilie ^{[1
]}

机构：

[1] Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Key Lab Funct Mat & Devices Special Environm, 40-1 South Beijing Rd, Urumqi 830011, Peoples R China

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

[3] Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2016年 / 138卷 / 29期

基金：

对外科技合作项目（国际科技项目）; 美国国家科学基金会;

关键词：

NONLINEAR-OPTICAL MATERIAL; BOND-VALENCE PARAMETERS; CRYSTAL-GROWTH; POLAR MATERIAL; ANIONIC GROUP; UNITS; PHOSPHATES; ALIGNMENT; SEMICONDUCTORS; POLYPHOSPHATE;

D O I：

10.1021/jacs.6b06053

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

LiCs2PO4, a new deep-ultraviolet (UV) transparent material, was synthesized by the flux method. The material contains unusual edge-sharing LiO4-PO4 tetrahedra. It exhibits a very short absorption edge of A = 174 nm and generates the largest powder second harmonic generation (SHG) response for deep-UV phosphates that do not contain additional anionic groups, i.e., 2.6 times that of KH2PO4 (KDP). First-principles electronic structure analyses confirm the experimental results and suggest that the strong SHG response may originate from the aligned nonbonding O-2p orbitals. The discovery and characterization of LiCs2PO4 provide a new insight into the structure property relationships of phosphate-based nonlinear optical materials with large SHG responses and short absorption edges.

引用

页码：9101 / 9104

页数：4

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