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

dc.contributor.authorWang, R. P.
dc.contributor.authorRode, A. V.
dc.contributor.authorChoi, Duk-Yong
dc.contributor.authorLuther-Davies, B.
dc.date.accessioned2015-12-21T22:58:46Z
dc.date.available2015-12-21T22:58:46Z
dc.date.issued2008-04-24
dc.date.updated2016-02-24T12:14:50Z
dc.description.abstractWe 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. Moreover, while the appearance of Se trimers is reasonable in Se-rich samples, they never vanish, even in Se-poor samples. A possible mechanism to form Se trimers in Se-poor samples is discussed.
dc.description.sponsorshipThis research was supported by Australian Research Council through its Centres of Excellence and Federation Fellow Programs.en_AU
dc.identifier.issn0021-8979en_AU
dc.identifier.urihttp://hdl.handle.net/1885/95157
dc.publisherAmerican Institute of Physics (AIP)
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0021-8979..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 22/12/15). Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics and may be found at https://doi.org/10.1063/1.2909883
dc.sourceJournal of Applied Physics
dc.subjectKeywords: Chemical bonds; Decomposition; Dimers; X ray photoelectron spectroscopy; Coordination number; Pyramidal; Glass
dc.titleInvestigation of the structure of GexAsySe1−x−y glasses by x-ray photoelectron spectroscopy
dc.typeJournal article
local.bibliographicCitation.issue8en_AU
local.bibliographicCitation.startpage083537en_AU
local.contributor.affiliationWang, Rongping, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National Universityen_AU
local.contributor.affiliationRode, Andrei V, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National Universityen_AU
local.contributor.affiliationChoi, Duk-Yong, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National Universityen_AU
local.contributor.affiliationLuther-Davies, Barry, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Laser Physics Centre, The Australian National Universityen_AU
local.contributor.authoremailrongping.wang@anu.edu.auen_AU
local.contributor.authoruidu4219061en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor020499en_AU
local.identifier.absfor091206en_AU
local.identifier.ariespublicationu9912193xPUB220en_AU
local.identifier.citationvolume103en_AU
local.identifier.doi10.1063/1.2909883en_AU
local.identifier.scopusID2-s2.0-43049121748
local.identifier.thomsonID000255456200068
local.identifier.uidSubmittedByu3488905en_AU
local.publisher.urlhttps://www.aip.org/en_AU
local.type.statusPublished Versionen_AU

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