Publication:
Energy band gap and dispersive optical parameters in Bi1.5Zn0.92Nb1.5O6.92 pyrochlore ceramics

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dc.contributor.authorsQasrawi, A. F.; Mergen, A.
dc.date.accessioned2022-03-12T17:48:40Z
dc.date.accessioned2026-01-11T19:20:07Z
dc.date.available2022-03-12T17:48:40Z
dc.date.issued2010
dc.description.abstractThe compositional and optical properties of Bi1.5Zn0.92Nb1.5O6.92 Pyrochlore ceramics have been investigated by means of scanning electron microscopy (SEM) and UV-vis spectroscopy, respectively. The SEM spectroscopy revealed that the pyrochlore exhibits a very dense microstructure with single-phase appearance. The absorption spectral analysis in the sharp absorption region revealed an indirect forbidden transitions band gap of 3.30 eV. The room temperature refractive index, which was calculated from the reflectance and transmittance data, allowed the identification of the dispersion and oscillator energies, static and lattice dielectric constants and static refractive index as 26.69 and 3.37 eV, 8.92 and 15.95 and 2.98, respectively. (C) 2010 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.jallcom.2010.02.170
dc.identifier.issn0925-8388
dc.identifier.urihttps://hdl.handle.net/11424/229994
dc.identifier.wosWOS:000278744500025
dc.language.isoeng
dc.publisherELSEVIER SCIENCE SA
dc.relation.ispartofJOURNAL OF ALLOYS AND COMPOUNDS
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectMixing
dc.subjectComposites
dc.subjectX-ray methods
dc.subjectOptical properties
dc.subjectDIELECTRIC-PROPERTIES
dc.subjectCRYSTAL-CHEMISTRY
dc.subjectTHIN-FILMS
dc.subjectSPIN ICE
dc.subjectBI1.5ZNNB1.5O7
dc.subjectTEMPERATURE
dc.titleEnergy band gap and dispersive optical parameters in Bi1.5Zn0.92Nb1.5O6.92 pyrochlore ceramics
dc.typearticle
dspace.entity.typePublication
oaire.citation.endPage90
oaire.citation.issue1-2
oaire.citation.startPage87
oaire.citation.titleJOURNAL OF ALLOYS AND COMPOUNDS
oaire.citation.volume496

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