Structural and surface morphology characterizations of oriented LiNbO3 thin films grown by polymeric precursor method

被引:17
作者
Bouquet, V
Leite, ER
Longo, E
Varela, JA
机构
[1] Univ Fed Sao Carlos, Dept Quim, LIEC, BR-13565905 Sao Carlos, SP, Brazil
[2] Univ Nacl Estadual Sao Paulo, Inst Quim, BR-14801970 Araraquara, SP, Brazil
关键词
films; sol-gel processes; electron microscopy; X-ray methods; niobates;
D O I
10.1016/S0955-2219(98)00469-5
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Polymeric precursor solution was used to deposit LiNbO3 thin films by dip coating on sapphire substrates. The effects of processing variables, such as heat treatment conditions and number of deposited layers, on crystallinity and morphology of the final films were investigated. X-ray diffraction patterns show the oriented growth of the films. The rocking curves, obtained around the (006) LiNbO3 peak, revealed that the shape peak and the FWHM value were influenced by the processing variables. According to these parameters, some films presented very homogeneous dense and smooth surfaces, as shown by the SEM and AFM studies. (C) 1999 Elsevier Science Limited. All rights reserved.
引用
收藏
页码:1447 / 1451
页数:5
相关论文
共 5 条
[1]   WAVE-GUIDES IN LITHIUM-NIOBATE [J].
ABOUELLEIL, MM ;
LEONBERGER, FJ .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1989, 72 (08) :1311-1321
[2]  
Bouquet V., 1997, Key Engineering Materials, V132-136, P1143
[3]   Control of crystallinity in sol-gel derived epitaxial LiNbO3 thin films on sapphire [J].
Nashimoto, K ;
Moriyama, H ;
Osakabe, E .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1996, 35 (9B) :4936-4940
[4]  
Pechini M.P, 1967, US Pat. Off., Patent No. [3330697, 3,330,697]
[5]   LITHIUM-NIOBATE - SUMMARY OF PHYSICAL-PROPERTIES AND CRYSTAL-STRUCTURE [J].
WEIS, RS ;
GAYLORD, TK .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1985, 37 (04) :191-203