Effect of biphase on dielectric properties of Bi-doped lead strontium titanate thin films

被引：1

作者：

Li, X. T. ^{[1
]}

Du, P. Y. ^{[1
]}

Zhao, Y. L. ^{[1
]}

Tu, Y. ^{[1
]}

Dai, J. L. ^{[1
]}

Weng, W. J. ^{[1
]}

Han, G. R. ^{[1
]}

Song, C. L. ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Silicon Mat, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2010年 / 183卷 / 11期

关键词：

Thin films; PST; Biphase; Sol-gel processes; Dielectric properties; SOL-GEL METHOD; COMPOSITES;

D O I：

10.1016/j.jssc.2010.09.007

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Pb0.4Sr0.6TiO3 (PST) thin films doped with various concentration of Bi were prepared by a sol-gel method. The phase status, surface morphology and dielectric properties of these thin films were measured by X-ray diffraction (XRD), scanning electron microscopy (SEM) and impedance analyzer, respectively. Results showed that the thin films with the maximum dielectric constant and minimum dielectric loss were obtained for x=0.15. For x < 0.15, only pure PST perovskite phase were in the thin films. For 0.2 < x < 0.4, the PST/Bi2Ti2O7 biphase were obtained. The thin films with pure Bi2Ti2O7 pyrochlore phase were obtained for x=0.67. The biphase thin films had high tunability and high figure of merit (FOM). The FOM of PST/Bi2Ti2O7 biphase thin film was about 6 times higher than that thin films formed with pure perovskite phase or pure pyrochlore phase. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：2598 / 2601

页数：4

共 50 条

[21] Structure and dielectric properties of La-doped lead strontium titanate thin films derived from sol-gel method
Li, X. T.
Wu, C.
Weng, W. J.
Han, G. R.
Du, P. Y.
SURFACE REVIEW AND LETTERS, 2008, 15 (1-2) : 13 - 18
[22] DIELECTRIC PROPERTIES OF LEAD-STRONTIUM TITANATE
NOMURA, S
SAWADA, S
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1955, 10 (02) : 108 - 111
[23] Dielectric properties of lead titanate thin films on corundum substrates
A. S. Sidorkin
L. P. Nesterenko
G. L. Smirnov
A. L. Smirnov
S. V. Ryabtsev
Physics of the Solid State, 2006, 48 : 1189 - 1191
[24] Dielectric properties of lead titanate thin films on corundum substrates
Sidorkin, A. S.
Nesterenko, L. P.
Smirnov, G. L.
Smirnov, A. L.
Ryabtsev, S. V.
PHYSICS OF THE SOLID STATE, 2006, 48 (06) : 1189 - 1191
[25] Luminescence properties of Bi-doped oxidized porous silicon thin films
Sa Chu Rong Gui
Imakita, Kenji
Fujii, Minoru
Bai, Zhenhua
Hayashi, Shinji
OPTICAL MATERIALS, 2012, 34 (07) : 1161 - 1164
[26] ON THE ANOMALOUS DIELECTRIC PROPERTIES OF MIXTURES OF LEAD TITANATE AND STRONTIUM TITANATE
NOMURA, S
SAWADA, S
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1950, 5 (04) : 279 - 280
[27] Physical properties of Bi-doped CdTe thin films deposited by cosputtering
Becerril, M.
Vigil-Galan, O.
Contreras-Puente, G.
Sanchez-Meza, E.
Zelaya-Angel, O.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2007, 204 (03): : 768 - 775
[28] Electrical properties of La-doped strontium titanate thin films
Olaya, D
Pan, F
Rogers, CT
Price, JC
APPLIED PHYSICS LETTERS, 2002, 80 (16) : 2928 - 2930
[29] Effect of excess lead on dielectric and ferroelectric properties of alkoxide-derived lead titanate thin films
Ohno, T
Suzuki, H
Takahashi, J
Shimada, S
Ota, T
Takahashi, M
Hikichi, Y
FERROELECTRICS, 2002, 271 : 1899 - 1904
[30] Influence of the morphology of barium strontium titanate thin films on the ferroelectric and dielectric properties
Borderon, C.
Averty, D.
Seveno, R.
Gundel, H. W.
INTEGRATED FERROELECTRICS, 2008, 97 : 12 - 19

← 1 2 3 4 5 →