Selective nucleation and band-gap widening of LiNbO3 nanocrystals on an α-Al2O3 substrate

被引：1

作者：

Lee, GH ^{[1
]}

机构：

[1] Dongeui Univ, Dept Informat Mat Engn, Pusan 614714, South Korea

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2004年 / 87卷 / 06期

关键词：

D O I：

10.1111/j.1551-2916.2004.01053.x

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：

Selective nucleation of LiNbO3 nanocrystals on the steps was observed during the initial stage of LiNbO3 film growth in an alpha-Al2O3 (0001) substrate with a multiatomic step structure. In addition, stress stored in the nanocrystals as a result of the different thermal expansion coefficients of the film and the substrate caused band-gap widening. As the size of the nanocrystals decreased, the band gap shifted to a higher energy.

引用

页码：1053 / 1055

页数：3

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