Irradiation effect of synchrotron radiation on crystallization of thin amorphous WO3 film

被引：3

作者：

Kimura, Y

Hanamoto, K

Nakayama, Y

Kaito, C

机构：

[1] Ritsumeikan Univ, Dept Phys, Shiga 5258577, Japan

[2] Okayama Univ, Fac Hlth Sci, Okayama 7008558, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2002年 / 194卷 / 02期

关键词：

electron microscopy; crystallization; amorphous thin film; irradiation; tungsten oxide;

D O I：

10.1016/S0168-583X(02)00685-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In order to elucidate the effect of synchrotron radiation (SR) irradiation on crystal growth, crystallization of WO3 films has been performed in vacuum under SR irradiation. The main results were compared with the results of heat treatment of the same film. Upon SR irradiation for 80 s using a toroidal mirror, a catastrophic change occurred, i.e. W3O crystals (A-15 type) with a size of less than 30 nm appeared. Decomposition of the WO3 film started at above 750 degreesC during vacuum heating. W, WO2 and incommensurate WO3 crystals appeared. W3O crystal produced neither intense electron beam irradiation nor vacuum heating. These results will be discussed in terms of the differences caused by excitation with a SR beam, i.e. strong inner shell excitation and ionization of W and O may have taken place. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：187 / 192

页数：6

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