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	Stoichiometry control and structure evolution in hydrothermally derived (Ba,Sr)TiO3 films
	Zhao, Jianling ; Wang, Xiaohui ; Li, Longtu ; Wang, Xixin ; Li, Yangxian
	2010-05-10 ; 2010-05-10
关键词	barium strontium titanate hydrothermal syntheses ceramic films TITANATE THIN-FILMS BARIUM-TITANATE Materials Science, Ceramics
中文摘要	(Ba,Sr)TiO3 films were synthesized on the titanium metal substrates in solution of Ba(OH)(2) and Sr(OH)(2) by hydrothermal method. Crystallinity and microstructure of the films changed with time, concentration and temperature. Effects of the mole ratio of barium and strontium in solution on the composition of film have been studied. The barium contents in the BST films are fairly lower than those in the original solutions. This indicates that strontium is more readily incorporated into the BST films, relative to barium. The results of narrow-scan of XPS spectrum confirm that the valences of Ba, Sr, Ti and O elements of hydrothermally prepared BST films are +2, +2, +4, and -2, respectively. SEM photographs show that the BST films are dense and well-compact. AFM analyses show that the average surface roughness of the films is 40-50 nm. It is concluded that BST films of different mole ratio of barium and strontium with thickness of up to 2 mu m have been prepared successively by the environmentally benign hydrothermal method. (c) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCI LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/20544]
专题	清华大学
推荐引用方式 GB/T 7714	Zhao, Jianling,Wang, Xiaohui,Li, Longtu,et al. Stoichiometry control and structure evolution in hydrothermally derived (Ba,Sr)TiO3 films[J],2010, 2010.
APA	Zhao, Jianling,Wang, Xiaohui,Li, Longtu,Wang, Xixin,&Li, Yangxian.(2010).Stoichiometry control and structure evolution in hydrothermally derived (Ba,Sr)TiO3 films..
MLA	Zhao, Jianling,et al."Stoichiometry control and structure evolution in hydrothermally derived (Ba,Sr)TiO3 films".(2010).

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