XPS study on BiI3-nylon 11 nanocomposites

doi:10.1016/j.matchemphys.2010.07.062

CORC > 化学研究所 > 中国科学院化学研究所

	XPS study on BiI3-nylon 11 nanocomposites
	Zhao, Zhijuan 1; Liu, Fen 1; Zhao, Liangzhong 1; Yan, Shouke 1,2
刊名	MATERIALS CHEMISTRY AND PHYSICS
	2010-11-01
卷号	124 期号:1 页码:55-59
关键词	X-ray Photoelectron Spectroscopy Photochromic Effect Nanocomposite X-ray Photoconductivity
ISSN号	0254-0584
DOI	10.1016/j.matchemphys.2010.07.062
英文摘要	The chemical states of Bi in BiI3-nylon 11 nanocomposites during X-ray irradiation were investigated by X-ray photoelectron spectroscopy (XPS). It has been found that with prolonging exposure to soft X-rays, Bi 4f peak of Bi metallic state emerged at lower binding energy side and the peak intensity continuously increased, while Bi 4f peak intensity of BiI3 gradually decreased. The valence band spectra of BiI3-nylon 11 nanocomposites show that the density of states near Fermi level increases with increasing the X-ray irradiation time due to the formation of metallic Bi, which is favorable to the conductivity. Besides, we have observed that BiI3-nylon 11 nanocomposites show a new photochromic effect, changing color from orange-red to black after prolonged exposure to the soft X-rays. The color turns to orange-red after air exposure. It has been found that the color change is intimately related to redox behavior of Bi atoms in BiI3-nylon 11 nanocomposites. We have also observed that the XPS charging shift and the resistance of BiI3-nylon 11 nanocomposites decrease with increasing X-ray exposure time. This phenomenon may be used to inspect the X-ray photoconductivity preliminary. (C) 2010 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000282607900015
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/69851]
专题	中国科学院化学研究所
通讯作者	Liu, Fen
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing Cn 100190, Peoples R China 2.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing Cn 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Zhijuan,Liu, Fen,Zhao, Liangzhong,et al. XPS study on BiI3-nylon 11 nanocomposites[J]. MATERIALS CHEMISTRY AND PHYSICS,2010,124(1):55-59.
APA	Zhao, Zhijuan,Liu, Fen,Zhao, Liangzhong,&Yan, Shouke.(2010).XPS study on BiI3-nylon 11 nanocomposites.MATERIALS CHEMISTRY AND PHYSICS,124(1),55-59.
MLA	Zhao, Zhijuan,et al."XPS study on BiI3-nylon 11 nanocomposites".MATERIALS CHEMISTRY AND PHYSICS 124.1(2010):55-59.