Synthesis, Crystal Structure, and Photoelectric Properties of a New   Layered Bismuth Oxysulfide

doi:10.1021/acs.inorgchem.5b00436

CORC > 北京大学 > 化学与分子工程学院

	Synthesis, Crystal Structure, and Photoelectric Properties of a New Layered Bismuth Oxysulfide
	Meng, Sha ; Zhang, Xian ; Zhang, Ganghua ; Wang, Yaoming ; Zhang, Hui ; Huang, Fuqiang
刊名	INORGANIC CHEMISTRY
	2015
关键词	PHOTOCATALYTIC ACTIVITY BAND-STRUCTURE SUPERCONDUCTIVITY DECOMPOSITION SULFIDE BIOCUS BI2O2S
DOI	10.1021/acs.inorgchem.5b00436
英文摘要	[Bi2O2]-containing tetragonal compounds have received enormous attention due to unique functions including ferroelectricity, photocatalysis, and superconductivity. Here, a new layered compound Bi9O7.5S6 was synthesized via a facile hydrothermal route. The compound, belonging to a new structure type crystallizes in a rhombohedral system with space group R (3) over barm (a = 4.0685(1) angstrom, c = 31.029(5) angstrom, V = 444.8(1) angstrom(3), Z = 1). The overall crystal structure consists of alternatively packed unique [Bi2O2] and [BiS2] layers along [001] which are combined with each other by van der Waals interaction. The phase purity of the product is confirmed by powder X-ray diffraction. XPS analyses indicate +3 for Bi and -2 for S atoms. The temperature dependence of resistivity rho(T) indicates that the semiconducting sample follows the mechanisms of variable range hopping ('VRH) and adiabatic small polaron hopping (SPH). The direct-transition band gap, E-g = 1.27 eV derived from optical absorption spectrum, falls in the optimal region of solar absorber materials. Accordingly, the photoelectric measurement demonstrates the potential for applications for photovoltaic devices.; Innovation Program of the CAS [KJCX2-EW-W11]; "Strategic Priority Research Program (B)" of the Chinese Academy of Sciences [XDB04040200]; NSF of China [91122034, 51125006, 61376056, 21201012, 51402341]; SCI(E); ARTICLE; huangfq@mail.sic.ac.cn; 12; 5768-5773; 54
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/419304]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Meng, Sha,Zhang, Xian,Zhang, Ganghua,et al. Synthesis, Crystal Structure, and Photoelectric Properties of a New Layered Bismuth Oxysulfide[J]. INORGANIC CHEMISTRY,2015.
APA	Meng, Sha,Zhang, Xian,Zhang, Ganghua,Wang, Yaoming,Zhang, Hui,&Huang, Fuqiang.(2015).Synthesis, Crystal Structure, and Photoelectric Properties of a New Layered Bismuth Oxysulfide.INORGANIC CHEMISTRY.
MLA	Meng, Sha,et al."Synthesis, Crystal Structure, and Photoelectric Properties of a New Layered Bismuth Oxysulfide".INORGANIC CHEMISTRY (2015).