Compositionally step-varied (Pb, Ca)TiO3 thin films with enhanced dielectric and ferroelectric properties

被引：38
作者：
Bao, DH [1 ]
Zhang, LY [1 ]
Yao, X [1 ]
机构：
[1] Xi An Jiao Tong Univ, Elect Mat Res Lab, Xian 710049, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2000年 / 76卷 / 08期
关键词：
D O I：
10.1063/1.125939
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Compositionally step-varied (Pb, Ca)TiO3 thin films were prepared on platinum-coated silicon substrates by a monoethanolamine-modified sol-gel technique. The dielectric constant and dissipation factor were found to be 342 and 0.019, respectively, for thin films of 0.6 mu m in thickness annealed at 550 degrees C for 60 min. The remanent polarization and coercive field were 37.7 mu C/cm(2) and 60.4 kV/cm, respectively. The leakage current was 1.31x10(-7) A/cm(2) at the voltage of 5 V. The compositionally step-varied (Pb, Ca)TiO3 thin films had enhanced dielectric and ferroelectric properties which were suitable for various device applications. (C) 2000 American Institute of Physics. [S0003-6951(00)03008-4].
引用
收藏
页码：1063 / 1065
页数：3
相关论文
共 24 条
[1]   Preparation, electrical and optical properties of (Pb,Ca)TiO3 thin films using a modified sol-gel technique [J].
Bao, DH ;
Wu, XQ ;
Zhang, LY ;
Yao, X .
THIN SOLID FILMS, 1999, 350 (1-2) :30-37
[2]  
Bao DH, 1998, PHYS STATUS SOLIDI A, V169, P227, DOI 10.1002/(SICI)1521-396X(199810)169:2<227::AID-PSSA227>3.0.CO
[3]  
2-R
[4]  
BAO DH, 1999, THESIS XIAN JIAOTONG
[5]   Unconventional hysteresis behavior in compositionally graded Pb(Zr,Ti)O3 thin films [J].
Brazier, M ;
McElfresh, M ;
Mansour, S .
APPLIED PHYSICS LETTERS, 1998, 72 (09) :1121-+
[6]   Effect of compositions and annealing conditions on the properties of sol-gel prepared calcium-modified lead titanate thin films [J].
Calzada, ML ;
Martin, MJ ;
Ramos, P ;
Mendiola, J ;
Sirera, R ;
DaSilva, MF ;
Soares, JC .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1997, 58 (07) :1033-1039
[7]   Sol-gel synthesis and electrical characterization of (Pb,Ca)TiO3 thin films [J].
Chewasatn, S ;
Milne, SJ .
JOURNAL OF MATERIALS SCIENCE, 1997, 32 (03) :575-582
[8]   Giant effective pyroelectric coefficients from graded ferroelectric devices [J].
Jin, F ;
Auner, GW ;
Naik, R ;
Schubring, NW ;
Mantese, JV ;
Catalan, AB ;
Micheli, AL .
APPLIED PHYSICS LETTERS, 1998, 73 (19) :2838-2840
[9]   Piezoelectric properties of Ca-modified PbTiO3 thin films [J].
Kholkin, AL ;
Calzada, ML ;
Ramos, P ;
Mendiola, J ;
Setter, N .
APPLIED PHYSICS LETTERS, 1996, 69 (23) :3602-3604
[10]   Influence of Al2O3 diffusion barrier and PbTiO3 seed layer on microstructural and ferroelectric characteristics of PZT thin films by sol-gel spin coating method [J].
Kim, SH ;
Kim, CE ;
Oh, YJ .
THIN SOLID FILMS, 1997, 305 (1-2) :321-326
123