Thermal Decomposition of Bismuth Oxysulfide from Photoelectric Bi2O2S to   Superconducting Bi4O4S3

doi:10.1021/am5092159

CORC > 北京大学 > 化学与分子工程学院

	Thermal Decomposition of Bismuth Oxysulfide from Photoelectric Bi2O2S to Superconducting Bi4O4S3
	Zhang, Xian ; Liu, Yufeng ; Zhang, Ganghua ; Wang, Yingqi ; Zhang, Hui ; Huang, Fuqiang
刊名	acs applied materials interfaces
	2015
关键词	bismuth oxysulfide photoelectric superconductor thermal decomposition PHOTOCATALYTIC ACTIVITY LAYERED SUPERCONDUCTORS HYDROSTATIC-PRESSURE TRANSITION SPECTRA SURFACE BIOCUS BI2S3
DOI	10.1021/am5092159
英文摘要	With the addition of oxygen into the chain-like bismuth sulfide of Bi2S3, there are two interesting functional compounds of Bi2O2S (photoelectric) and Bi4O4S3 (superconducting) containing the PbO-like [Bi2O2] layers. Nanoscale Bi2O2S crystals with an indirect band gap of 1.12 eV are synthesized via a facile hydrothermal method. This semiconductor shows excellent photoelectric response under the irradiation of visible light lamp at room temperature. Theoretical calculations and packing factor model both indicate that the loosely packed Bi2O2S is an excellent photoelectric material. When the Bi2O2S phase was annealed at 500 degrees C in an evacuated quartz tube, nanocrystals of Bi(4)O(4)S3 were obtained. The powder X-ray diffraction and electron microscope analyses (SEM, TEM, EDX) confirmed the thermal decomposition from orthorhombic Bi2O2S to tetragonal Bi4O4S3. The superconducting transition temperature of Bi4O4S3 was observed to be 4.6 K from the temperature-dependence measurements of electrical resistivity and magnetic susceptibility. Our results also provide a new method utilizing thermal decomposition to prepare a new phase without high temperature reaction.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000350193000067&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; SCI(E); EI; 7; ARTICLE; huizhang@mail.sic.ac.cn; huangfq@mail.sic.ac.cn; 7; 4442-4448; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150316]
专题	化学与分子工程学院工学院
推荐引用方式 GB/T 7714	Zhang, Xian,Liu, Yufeng,Zhang, Ganghua,et al. Thermal Decomposition of Bismuth Oxysulfide from Photoelectric Bi2O2S to Superconducting Bi4O4S3[J]. acs applied materials interfaces,2015.
APA	Zhang, Xian,Liu, Yufeng,Zhang, Ganghua,Wang, Yingqi,Zhang, Hui,&Huang, Fuqiang.(2015).Thermal Decomposition of Bismuth Oxysulfide from Photoelectric Bi2O2S to Superconducting Bi4O4S3.acs applied materials interfaces.
MLA	Zhang, Xian,et al."Thermal Decomposition of Bismuth Oxysulfide from Photoelectric Bi2O2S to Superconducting Bi4O4S3".acs applied materials interfaces (2015).