Defects in LPE-grown β-barium borate (β-BaB2O4) thin films

被引：0

作者：

Liu, Junfang ^{[1
]}

Xu, Jun

Yao, Wu

机构：

[1] Tongji Univ, Coll Mat Sci & Engn, Shanghai 200092, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

来源：

OPTIK | 2007年 / 118卷 / 10期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.ijleo.2006.04.019

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Morphological defects in beta-barium borate (beta-BBO) thin films grown on Sr2+ -doped alpha-BBO substrates by liquid phase epitaxy (LPE) technique were studied by scanning electron micrograph (SEM), atomic force microscopy (AFM) and optical spectroscopy. The present results indicate that the main defects exit in beta-BBO thin films are microcracks and hollow structure. The formation of microcrack is due to the lattice mismatch and the difference of thermal expansion coefficients between substrate and film. The hollow structure might be caused during the combination of islands, which formed in the initial stage. (C) 2006 Elsevier GmbH. All rights reserved.

引用

页码：487 / 490

页数：4

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