Hydrogen collision model of light-induced metastability in hydrogenated amorphous silicon

被引：71
|
作者：
Branz, HM [1 ]
机构：
[1] Natl Renewable Energy Lab, Golden, CO 80401 USA
来源：
SOLID STATE COMMUNICATIONS | 1998年 / 105卷 / 06期
关键词：
D O I：
10.1016/S0038-1098(97)10142-9
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A new model of light-induced metastability (Staebler-Wronski effect) in hydrogenated amorphous silicon is proposed. When two mobile H atoms generated by photo-induced carriers collide, they form a metastable, immobile complex containing two Si-H bonds. Excess metastable dangling bonds remain at the uncorrelated sites from which the colliding H were excited. The model accounts quantitatively for the kinetics of light-induced defect creation, both near room temperature and at 4.2 K. Other experimental results, including light-induced and thermal annealing kinetics, are also explained. (C) 1998 Elsevier Science Ltd.
引用
收藏
页码：387 / 391
页数：5
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