Preparation and electrochromic properties of nanocrystalline WO3 thin films prepared by pulsed excimer laser ablation technique

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	Preparation and electrochromic properties of nanocrystalline WO3 thin films prepared by pulsed excimer laser ablation technique
	G. J. Fang; Z. L. Liu; G. C. Sun; K. L. Yao
	2001
发表期刊	Physica Status Solidi a-Applied Research
ISSN	0031-8965
卷号	184 期号:1 页码:129-137
摘要	Tungsten oxide thin films with different stoichiometry have been deposited on In2O3:SnO2 glass (ITO) and Si wafer by pulsed laser deposition (PLD) technique at different deposition temperatures and oxygen pressure. The structural properties of WO3 thin films were analyzed by using a scanning accessory of transmission electron microscope (STEM). X-ray diffraction (XRD), Fourier transform infrared spectrum (FT-IR), Raman spectrum (RS). Thin films deposited at 200 degreesC on ITO showed amorphous structure, those deposited at 300 and 400 degreesC on ITO showed nanocrystalline triclinic structure. As for samples deposited at 400 degreesC, in which the crystals keep nanocrystal line, cyclic voltammograms at sweep rate of 50 mV/s shows that no long-term degradation was noted at least up to 1000 cycles, and durability was verified to 8000 cycles in the voltage range between -1.2 and 1.4 V. Its open and porous structure is suitable for Li-ions going into and out, and induced improved cycle stability and reversibility.
部门归属	huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china. huazhong univ sci & technol, natl lab laser technol, wuhan 430074, peoples r china. xiangfan univ, dept phys, xiangtan 441053, peoples r china. chinese acad sci, int ctr mat sci, shenyang 110015, peoples r china.;fang, gj (reprint author), huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china
关键词	Tungsten Deposition No2
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36636
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. J. Fang,Z. L. Liu,G. C. Sun,et al. Preparation and electrochromic properties of nanocrystalline WO3 thin films prepared by pulsed excimer laser ablation technique[J]. Physica Status Solidi a-Applied Research,2001,184(1):129-137.
APA	G. J. Fang,Z. L. Liu,G. C. Sun,&K. L. Yao.(2001).Preparation and electrochromic properties of nanocrystalline WO3 thin films prepared by pulsed excimer laser ablation technique.Physica Status Solidi a-Applied Research,184(1),129-137.
MLA	G. J. Fang,et al."Preparation and electrochromic properties of nanocrystalline WO3 thin films prepared by pulsed excimer laser ablation technique".Physica Status Solidi a-Applied Research 184.1(2001):129-137.