Cd4SiQ6 (Q = S, Se): Ternary Infrared Nonlinear Optical Materials with Mixed Functional Building Motifs,Crystal Growth & Design

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Cd4SiQ6 (Q = S, Se): Ternary Infrared Nonlinear Optical Materials with Mixed Functional Building Motifs
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2020-03-11 , DOI: 10.1021/acs.cgd.9b01649
Jindong Chen ₁ , Chensheng Lin , Shunda Yang ₂ , Xiaotian Jiang ₁ , Shuangshuang Shi ₁ , Yingshuang Sun ₁ , Bingxuan Li , Shenghao Fang , Ning Ye ₃

Affiliation

Two ternary infrared nonlinear optical materials Cd₄SiS₆ (1) and Cd₄SiSe₆ (2) with polar space group Cc were obtained by mixing d¹⁰ configurations-central tetrahedra motifs and nonlinear optical (NLO)-active distorted M^IVQ₄ tetrahedra motifs in a non-alkaline earth metals-containing system. They exhibited an interesting three-dimensional (3D) framework structure, and millimeter-level single crystals were successfully grown by a chemical transport reaction. Comprehensive optical measurements indicated that they achieve coexistence of good second-harmonic generation (SHG) responses (1.3 and 1.9 × AgGaS₂ at 74–106 μm particle size) and high laser-induced damage thresholds (8.6 and 7.1 × AgGaS₂ at 1064 nm laser) and wide infrared (IR) transparent regions (0.45–17.6 μm for 1, 0.64–20.3 μm for 2). Furthermore, theoretical studies revealed that their SHG effects originate from two functional building motifs (FBMs) CdQ₄ and SiQ₄ tetrahedra, shedding light on the exploration of new IR NLO materials with mixed FBMs.

中文翻译：

Cd ₄ SiQ ₆（Q = S，Se）：具有混合功能构建基元的三元红外非线性光学材料

通过混合d ¹⁰构型-中心四面体图案和非线性光学（NLO）有源畸变M ^IV Q ₄，获得两种具有极性空间群Cc的三元红外非线性光学材料Cd ₄ SiS ₆（1）和Cd ₄ SiSe ₆（2）。非碱土金属体系中的四面体基序。他们展示了有趣的三维（3D）框架结构，并且通过化学传输反应成功地生长了毫米级的单晶。全面的光学测量表明，它们可以实现良好的二次谐波生成（SHG）反应（在74-106μm粒径下为1.3和1.9×AgGaS ₂）和较高的激光诱导损伤阈值（在1064 nm下为8.6和7.1×AgGaS ₂激光）和宽的红外（IR）透明区域（1为0.45-17.6μm，2为0.64-20.3μm ）。此外，理论研究表明，它们的SHG效应源自两个功能性建筑图案（FBM）CdQ ₄和SiQ。₄四面体，阐明了使用混合FBM的新型IR NLO新材料的探索。

更新日期：2020-04-23

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