Anionic Aliovalent Substitution from Structure Models of ZnS: Novel Defect Diamond-like Halopnictide Infrared Nonlinear Optical Materials with Wide Band Gaps and Large SHG Effects

被引：54

作者：

Chen, Jindong ^{[1
,2
]}

Lin, Chensheng ^{[1
]}

Zhao, Dan ^{[4
]}

Luo, Min ^{[1
]}

Peng, Guang ^{[1
]}

Li, Bingxuan ^{[1
]}

Yang, Shunda ^{[1
]}

Sun, Yingshuang ^{[1
,2
]}

Ye, Ning ^{[1
,3
]}

机构：

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

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

[3] Lab Optoelect Informat China, Technol Innovat, Fuzhou 350002, Fujian, Peoples R China

[4] Henan Polytech Univ, Coll Chem & Chem Engn, Jiaozuo 454000, Henan, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2020年 / 59卷 / 52期

基金：

中国国家自然科学基金;

关键词：

anionic aliovalent substitution; defect diamond-like structure; halopnictides; IR NLO materials; second-harmonic generation; MID-IR; SINGLE-CRYSTALS; GROWTH; 1ST-PRINCIPLES; AGGASE2; ZNGEP2; PREDICTION; PHASES; DAMAGE; SE;

D O I：

10.1002/anie.202010319

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

To design pnictide nonlinear optical materials with wide band gap and large second-harmonic generation, the heavy halogen I was introduced into pnictides through anionic aliovalent substitution with diamond-like ZnS as templates. Thus, four excellent halopnictide-based infrared nonlinear optical crystals, M(3)(II)PnI(3)(M-II=Zn, Cd; Pn=P, As), were obtained. They all exhibited defect diamond-like structures with highly parallel-oriented [M(II)PnI(3)] mixed-anionic tetrahedral groups, leading to excellent physical properties including wide band gaps (2.38-2.85 eV), large second harmonic generation responses (2.7-5.1xAgGaS(2)), high laser-induced damage thresholds (5.5-10.7xAgGaS(2)), and good IR transparency. In particular, Cd(3)PI(3)and Cd(3)AsI(3)achieved phase-matching (Delta n=0.035 and 0.031) that their template beta-ZnS could not do. Anionic aliovalent substitution provides a feasible strategy to design novel promising halopnictide IR NLO materials.

引用

页码：23549 / 23553

页数：5