title: Explorations of new types of second-order nonlinear optical materials in Cd(Zn)-VV-TeIV-O Systems.
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.
authors: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
authors: Hai-Long
authors: HL
authors: Jiang
authors: Shu-Ping
authors: SP
authors: Huang
authors: Yang
authors: Y
authors: Fan
authors: Jiang-Gao
authors: JG
authors: Mao
authors: Wen-Dan
authors: WD
authors: Cheng