Cs2GeB4O9: a New Second-Order Nonlinear-Optical Crystal

doi:10.1021/ic302774h

CORC > 北京大学 > 化学与分子工程学院

	Cs2GeB4O9: a New Second-Order Nonlinear-Optical Crystal
	Xu, Xiang ; Hu, Chun-Li ; Kong, Fang ; Zhang, Jian-Han ; Mao, Jiang-Gao ; Sun, Junliang
刊名	inorganic chemistry
	2013
关键词	ALKALINE BERYLLIUM BORATE BOND-VALENCE PARAMETERS TEMPLATED BOROGERMANATE ANIONIC GROUP GENERATION FRAMEWORK CHANNELS GROWTH TETRAHEDRA K2AL2B2O7
DOI	10.1021/ic302774h
英文摘要	A new alkali-metal borogermanate with noncentrosymmetric structure, namely, Cs2GeB4O9, has been discovered, and a large crystal with dimensions of 20 x 16 x 8 mm(3) has been grown by a high-temperature top-seeded solution method using Cs2O-B2O3 as a flux. The compound crystallizes in the tetragonal space group I (4) over bar with a = b = 6.8063(2) angstrom, c = 9.9523(7) angstrom, V = 461.05(4) angstrom(3), and Z = 2. It features a three-dimensional anionic open framework based on GeO4 tetrahedra and B4O9 clusters that are interconnected via corner-sharing, forming one-dimensional channels of nine-/ten-membered rings along the a and b axes, which are occupied by Cs+ cations. Cs2GeB4O9 exhibits a very high thermal stability with a melting point of 849 degrees C, and it possesses a short-wavelength absorption edge onset at 198 nm determined by UV-vis transmission spectroscopy measurements on a slab of polished crystal. Powder second-harmonic generation (SHG) measurement on sieved crystals reveals that Cs2GeB4O9 is a type I phase-matchable material with a strong SHG response of about 2.8 x KH2PO4. The preliminary investigation indicates that Cs2GeB4O9 is a new promising second-order nonlinear-optical crystalline material.; Chemistry, Inorganic & Nuclear; SCI(E); 18; ARTICLE; 10; 5831-5837; 52
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/223657]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Xu, Xiang,Hu, Chun-Li,Kong, Fang,et al. Cs2GeB4O9: a New Second-Order Nonlinear-Optical Crystal[J]. inorganic chemistry,2013.
APA	Xu, Xiang,Hu, Chun-Li,Kong, Fang,Zhang, Jian-Han,Mao, Jiang-Gao,&Sun, Junliang.(2013).Cs2GeB4O9: a New Second-Order Nonlinear-Optical Crystal.inorganic chemistry.
MLA	Xu, Xiang,et al."Cs2GeB4O9: a New Second-Order Nonlinear-Optical Crystal".inorganic chemistry (2013).