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Investigation of the structure of GexAsySe1−x−y glasses by x-ray photoelectron spectroscopy

Wang, R. P.; Rode, A. V.; Choi, D. Y.; Luther-Davies, B.


We have measured and analyzed x-ray photoelectron spectra of a series of GexAsySe1−x−yglasses. The valence band spectra show that a number of Se-rich structures exist in the samples. After decomposing Ge, As, and Se3dspectra into several doublets and assigning them to the different local bond structures, it was found that, while GeSe₄/₂ tetrahedral, AsSe₃/₂ pyramidal, and Se trimers decrease in their integrated areas, most defect bonds increase with increasing mean coordination number....[Show more]

CollectionsANU Research Publications
Date published: 2008-04-24
Type: Journal article
Source: Journal of Applied Physics
DOI: 10.1063/1.2909883


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