Structural and optical properties of tungsten-doped vanadium dioxide films

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	Structural and optical properties of tungsten-doped vanadium dioxide films
	Wang, XJ ; Liu, YY ; Li, DH ; Feng, BH ; He, ZW ; Qi, Z
刊名	CHINESE PHYSICS B
	2013
卷号	22 期号:6
关键词	tungsten-doped vanadium dioxide thermochromic magnetron sputtering
ISSN号	1674-1056
通讯作者	Wang, XJ (reprint author), China Agr Univ, Coll Sci, Beijing 100083, Peoples R China.
中文摘要	Thin films of tungsten (W)-doped thermochromic vanadium dioxide (VO2) were deposited onto soda-lime glass and fused silica by radio frequency magnetron sputtering. The doped VO2 films were characterized by X-ray diffraction, optical transmittance measurement, and near field optical microscopy with Raman spectroscopy. X-ray diffraction patterns show that the (011) peak of W-doped thermochromic VO2 film shifts to a lower diffraction angle with the increase of W concentration. The optical measurements indicated that the transmittance change (Delta T) at wavelength of 2500 nm drops from 65% (Delta T at 35 degrees C and 80 degrees C for undoped VO2 film) to 38% (Delta T at 30 degrees C and 42 degrees C for the doped VO2 film). At the same time, phase transition temperature drops from 65 degrees C to room temperature or lower with the increase of W concentration. Near field optical microscopy image shows that the surface of W-doped VO2 film is smooth. Raman results show that the main Raman modes of W-doped VO2 are centered at 614 cm(-1), the same as that of undoped VO2, suggesting no Raman mode changes for lightly W-doped VO2 at room temperature, due to no phase transition appearing under this condition.
资助信息	Chinese Universities Scientific Fund [2013QJ007]; Science Fund of China Agricultural University [2007037]; Major Project Foundation of Science and Technology Innovation in Advanced Education [21010112]
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57485]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Wang, XJ,Liu, YY,Li, DH,et al. Structural and optical properties of tungsten-doped vanadium dioxide films[J]. CHINESE PHYSICS B,2013,22(6).
APA	Wang, XJ,Liu, YY,Li, DH,Feng, BH,He, ZW,&Qi, Z.(2013).Structural and optical properties of tungsten-doped vanadium dioxide films.CHINESE PHYSICS B,22(6).
MLA	Wang, XJ,et al."Structural and optical properties of tungsten-doped vanadium dioxide films".CHINESE PHYSICS B 22.6(2013).