OPTICAL-ABSORPTION IN PLASMA-DEPOSITED SILICON OXYNITRIDE FILMS

被引:30
|
作者
ANCE, C [1 ]
DECHELLE, F [1 ]
FERRATON, JP [1 ]
LEVEQUE, G [1 ]
ORDEJON, P [1 ]
YNDURAIN, F [1 ]
机构
[1] UNIV AUTONOMA MADRID,DEPT FIS MAT CONDENSADA,E-28049 MADRID,SPAIN
关键词
D O I
10.1063/1.107303
中图分类号
O59 [应用物理学];
学科分类号
摘要
We present an experimental and theoretical study of the optical absorption of amorphous silicon oxynitride films. The optical absorption coefficient-alpha in the energy range from 4 to 10 eV has been measured for SiOxNyHz films between the nitride and oxide compositions grown by plasma-enhanced chemical vapor deposition. We have also calculated the coefficient-alpha for SiOxNy alloys assuming a random mixture of Si-N and Si-O bonds within the disordered alloy. The variation of the optical gap E(g) with the composition and the appearance of steps in the optical absorption for oxygen-rich samples are discussed.
引用
收藏
页码:1399 / 1401
页数:3
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