Cd(Zn)-VV-TeIV-O体系中新型二阶非线性光学材料的探索

Explorations of new types of second-order nonlinear optical materials in Cd(Zn)-VV-TeIV-O Systems.

作者信息

Jiang Hai-Long, Huang Shu-Ping, Fan Yang, Mao Jiang-Gao, Cheng Wen-Dan

机构信息

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.

出版信息

Chemistry. 2008;14(6):1972-81. doi: 10.1002/chem.200701440.

DOI:10.1002/chem.200701440

PMID:18069716

Abstract

Solid-state reactions of zinc(II) or cadmium(II) oxide, V(2)O(5), and TeO(2) at high temperature led to two novel quaternary compounds, namely, Zn(3)V(2)TeO(10) and Cd(4)V(2)Te(3)O(15). The structure of Zn(3)V(2)TeO(10) is a complicated three-dimensional (3D) network constructed by the interconnection of ZnO(5), ZnO(6), VO(4), and TeO(4) polyhedra via corner- and edge-sharing. Cd(4)V(2)Te(3)O(15) with an acentric structure features a 3D network in which the cadmium tellurite layers are further interconnected by both "isolated" VO(4) tetrahedra and one-dimensional (1D) vanadium oxide helical chains. Cd(4)V(2)Te(3)O(15) displays a second harmonic generation (SHG) efficiency of about 1.4 times that of KH(2)PO(4) (KDP). Both compounds are direct band-gap semiconductors and are transparent in the range of 0.6-10.0 mum. Measurements of luminescence indicate that both compounds exhibit broad emission bands in the blue-light region.

摘要

氧化锌（II）或氧化镉（II）、五氧化二钒（V₂O₅）和二氧化碲（TeO₂）在高温下的固态反应生成了两种新型的四元化合物，即Zn₃V₂TeO₁₀和Cd₄V₂Te₃O₁₅。Zn₃V₂TeO₁₀的结构是一个复杂的三维（3D）网络，由ZnO₅、ZnO₆、VO₄和TeO₄多面体通过角共享和边共享相互连接而成。具有非中心对称结构的Cd₄V₂Te₃O₁₅具有一个3D网络，其中镉碲酸盐层通过“孤立”的VO₄四面体和一维（1D）氧化钒螺旋链进一步相互连接。Cd₄V₂Te₃O₁₅的二次谐波产生（SHG）效率约为磷酸二氢钾（KDP）的1.4倍。这两种化合物都是直接带隙半导体，在0.6 - 10.0μm范围内是透明的。发光测量表明，这两种化合物在蓝光区域都表现出宽发射带。