Synthesis, crystal structures and optical properties of noncentrosymmetric oxysulfides AeGeS(2)O (Ae = Sr, Ba)

doi:10.1039/c9dt02780g

	Synthesis, crystal structures and optical properties of noncentrosymmetric oxysulfides AeGeS(2)O (Ae = Sr, Ba)
	Zhang, Xian; Xiao, Yi; Wang, Ruico; Fu, Pengxiang; Zheng, Chong; Huang, Fudiang
刊名	DALTON TRANSACTIONS
	2019-10-21
卷号	48 期号:39 页码:14662
ISSN号	1477-9226
DOI	10.1039/c9dt02780g
文献子类	Article
英文摘要	Two new oxysulfides, AeGeS(2)O (Ae = Sr, Ba), were successfully synthesized via the molten salt method. The two isostructural compounds crystallize in the noncentrosymmetric space group P2(1)2(1)2(1). Their structures feature 1 infinity[GeS2O](2-) one-dimensional helical chains which are built up by [GeS2O2](4-) heteroanionic tetrahedra via corner sharing of O atoms. The two oxysulfides are typical semiconductors with wide bandgaps (SrGeS2O: 3.9 eV and BaGeS2O: 4.1 eV) that are perfectly consistent with the first-principles calculation results. They show typical band emissions under UV light excitation (SrGeS2O: 375 nm and BaGeS2O: 360 nm). In addition, SrGeS2O also possesses an orange-yellow light emission (572 nm). SrGeS2O and BaGeS2O exhibit moderate second harmonic generation (SHG) intensities of 0.4 x AgGaS2 and 0.5 x AgGaS2, respectively.
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26770]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Zhang, Xian,Xiao, Yi,Wang, Ruico,et al. Synthesis, crystal structures and optical properties of noncentrosymmetric oxysulfides AeGeS(2)O (Ae = Sr, Ba)[J]. DALTON TRANSACTIONS,2019,48(39):14662.
APA	Zhang, Xian,Xiao, Yi,Wang, Ruico,Fu, Pengxiang,Zheng, Chong,&Huang, Fudiang.(2019).Synthesis, crystal structures and optical properties of noncentrosymmetric oxysulfides AeGeS(2)O (Ae = Sr, Ba).DALTON TRANSACTIONS,48(39),14662.
MLA	Zhang, Xian,et al."Synthesis, crystal structures and optical properties of noncentrosymmetric oxysulfides AeGeS(2)O (Ae = Sr, Ba)".DALTON TRANSACTIONS 48.39(2019):14662.