Characteristic crystal growth from amorphous WO3 film by vacuum heating

被引：8

作者：

Kimura, Y ^{[1
]}

Kaito, C ^{[1
]}

机构：

[1] Ritsumeikan Univ, Dept Nanophys Frontier Project, Kusatsu, Shiga 5258577, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 2003年 / 250卷 / 3-4期

关键词：

crystallites; crystal morphology; crystal structure; oxides;

D O I：

10.1016/S0022-0248(02)02478-8

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Selective growth of WO2, W and WO3-x crystals from amorphous WO3 film by vacuum heating at 400-900degreesC was clarified. The grown WO3-x crystals were incommensurate structure based on crystallographic share structure. The growth process of WO2 crystal in the amorphous film was directly observed at high temperature in the electron microscope. The growth front of the WO2 crystal consumes WO3 microcrystallites with various orientations. The growth speed of the WO2 depended on WO3 microcrystallites orientation. The origin of the wavy growth front of WO2 was due to an orientation dependence of the WO3 microcrystallites. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：450 / 457

页数：8

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