Laser-induced coloration of WO3

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	Laser-induced coloration of WO3
	Y. Zhao ; Z. C. Feng ; Y. Liang ; H. W. Sheng
刊名	Applied Physics Letters
	1997
卷号	71 期号:16 页码:2227-2229
关键词	amorphous wo3 films photoelectrolysis electrode light
ISSN号	0003-6951
中文摘要	It has long been recognized that WO3 can be colored through electro-, photo-, and thermo-chromism processes. We report here that WO3 turned to a deep blue color upon just one pulse irradiation of the XeCl excimer laser (lambda = 308 nm, pulse duration = 36 ns, output energy = 100 mJ/pulse). Scanning electron microscopy (SEM) images showed that a melted layer was formed on the surface of the sample. The color change was demonstrated by UV-visible diffuse reflectance. X-ray photoelectron spectroscopy (XPS) showed the partial reduction of WO3 and the appearance of conduction band electrons. Calorimetry measurement results indicated that reoxidation happened at 400-440 degrees C in air. From these experimental results combining with the calculation, it was concluded that the laser-induced coloration is different from ordinary photochromism induced by UV light, and may be attributed to thermochromism. (C) 1997 American Institute of Physics.
原文出处	://WOS:A1997YB43600001
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/38222]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Zhao,Z. C. Feng,Y. Liang,et al. Laser-induced coloration of WO3[J]. Applied Physics Letters,1997,71(16):2227-2229.
APA	Y. Zhao,Z. C. Feng,Y. Liang,&H. W. Sheng.(1997).Laser-induced coloration of WO3.Applied Physics Letters,71(16),2227-2229.
MLA	Y. Zhao,et al."Laser-induced coloration of WO3".Applied Physics Letters 71.16(1997):2227-2229.