The textured PbTiO3-Al2O3 composite films prepared by the sol-gel method

被引:4
作者
Bursík, J [1 ]
Kuzel, R
Vanek, P
机构
[1] Acad Sci Czech Republ, Inst Inorgan Chem, CZ-25068 Prague, Czech Republic
[2] Charles Univ, Fac Math & Phys, CR-12116 Prague 2, Czech Republic
[3] Acad Sci Czech Republ, Inst Phys, Prague 18221 8, Czech Republic
来源
INTERNATIONAL JOURNAL OF INORGANIC MATERIALS | 2001年 / 3卷 / 06期
关键词
thin films; texture; lead titanate; chemical solution deposition;
D O I
10.1016/S1466-6049(01)00065-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The sol-gel method was used to prepare PbTiO3 (PT) and PbTiO3-Al2O3 (PT-AL) thin films on amorphous (SiO2 glass) and crystalline (111) Si, and (0001) Al2O3) substrates using the dip-coating technique. The films were examined by XRD methods to describe the phase composition, cell parameters and degree of texture, by electron microprobe, AFM, SEM, EDAX and Rutherford backscattering to evaluate the microstructure and composition. PT-AL films are stressed, have grain size smaller than 0.1 mum and modified cell parameters of PT phase (lower cla tetragonality). In dependence on the molar ratio of Ti:Al, the different extent of crystallographic ordering was observed ranging from randomly oriented to strongly textured crystallites of PT. In the compositional range of Ti/Al 2 divided by4 the films show strong fibre texture with the a-axis (axis of texture) oriented perpendicular to the film plane. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:485 / 492
页数:8
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