Electrical and Computer Engineering Publications
Light-induced defect states in hydrogenated amorphous silicon centered around 1.0 and 1.2 eV from the conduction band edge
Document Type
Article
Publication Date
11-3-2003
Volume
83
Issue
18
Journal
Applied Physics Letters
First Page
3725
URL with Digital Object Identifier
10.1063/1.1624637
Last Page
3727
Abstract
Light-induced (LI) degradation in hydrogenated amorphous silicon (a-Si:H) was studied. Contributions to the α(hv) of multiple defect states at and below midgap were addressed by analyzing the evolution of the entire spectra. Two distinctly different light induced defect states centered around 1.0 and 1.2 eV from the conduction band (CB) edge were clearly identified and their evolution found to be consistent with the corresponding changes in μτ.