DocumentCode
1224361
Title
Effects of the sol-concentration on the structural and dielectric properties of Pb0.3Sr0.7TiO3 thin films derived by the sol-gel method
Author
Zhou, Dongyi ; Wu, Wenbiao ; Jin, Dengren ; Cheng, Jinrong ; Meng, Zhongyan
Author_Institution
Dept. of Mater. Sci. & Eng., Shanghai Univ., Shanghai
Volume
55
Issue
5
fYear
2008
fDate
5/1/2008 12:00:00 AM
Firstpage
1034
Lastpage
1037
Abstract
Pb0.3Sr0.7TiO3(PST) thin films were deposited on Pt coated Si(100) substrates by sol-gel techniques using different sol-concentrations. The structural and dielectric characteristics of lead strontium titanate (PST) thin films as a function of the sol-concentration were investigated. PST thin films reveal a columnar texture through the thickness when the sol-concentration is lower than 0.30 M. PST thin films derived from 0.35 M sol show better dielectric characteristics with the dielectric constant, dielectric loss, tunability, and field of motion (FOM) (tun- ability/dissipation) of 200, 0.01, 47% and 47, respectively. The temperature dependence of the dielectric constant, dielectric loss and tunability of PST thin films were investigated in the temperature range of -140 to 120degC exhibiting a dielectric peak of about -45degC.
Keywords
ceramics; dielectric losses; dielectric thin films; lead compounds; permittivity; sol-gel processing; Pb0.3Sr0.7TiO3; Si; dielectric constant; dielectric loss; dielectric thin films; field of motion; lead strontium titanate; sol concentration; sol-gel method; structural properties; temperature 133 K to 393 K; tunability; Ceramics; Crystallization; Electric Conductivity; Materials Testing; Membranes, Artificial; Phase Transition;
fLanguage
English
Journal_Title
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
Publisher
ieee
ISSN
0885-3010
Type
jour
DOI
10.1109/TUFFC.2008.751
Filename
4524979
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