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Highly c-axis oriented LiNbO3 thin film grown on SiO2/Si substrates by pulsed laser deposition
被引:10
|作者:
Ye, ZZ
He, JH
[1
]
Ye, LF
Zhao, BH
Weng, WC
Lu, HM
机构:
[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
基金:
中国国家自然科学基金;
关键词:
LiNbO3;
SiO2/Si substrate;
pulsed laser deposition;
epitaxial growth;
D O I:
10.1016/S0167-577X(01)00658-9
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Highly c-axis oriented LiNbO3 thin film has been deposited on the SiO2/Si substrate by KrF excimer pulsed laser deposition (PLD) technique under optimized conditions of 30-Pa oxygen pressure and 600 degreesC substrate temperature. The amorphous SiO2 buffer layer was coated on the Si (001) wafer by thermal oxidation in situ. X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements confirm that the film shows superior crystalline quality and highly c-axis oriented texture. Neither the Li-enriched LiNbO3 target nor a biased electric field was applied during the deposition. (C) 2002 Elsevier Science B.V. All Rights Reserved.
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页码:265 / 268
页数:4
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