Please use this identifier to cite or link to this item: https://dspace.iiti.ac.in/handle/123456789/7915
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dc.contributor.authorGupta, Minalen_US
dc.contributor.authorKumar, Anilen_US
dc.contributor.authorSagdeo, Pankaj R.en_US
dc.date.accessioned2022-03-17T01:00:00Z-
dc.date.accessioned2022-03-21T11:14:22Z-
dc.date.available2022-03-17T01:00:00Z-
dc.date.available2022-03-21T11:14:22Z-
dc.date.issued2021-
dc.identifier.citationGupta, M., Kumar, A., Sagdeo, A., & Sagdeo, P. R. (2021). Doping-induced combined fano and phonon confinement effect in la-doped CeO2: Raman spectroscopy analysis. Journal of Physical Chemistry C, 125(4), 2648-2658. doi:10.1021/acs.jpcc.0c09133en_US
dc.identifier.issn1932-7447-
dc.identifier.otherEID(2-s2.0-85100262120)-
dc.identifier.urihttps://doi.org/10.1021/acs.jpcc.0c09133-
dc.identifier.urihttps://dspace.iiti.ac.in/handle/123456789/7915-
dc.description.abstractThe effect of La-doping on the crystallographic structure and the Raman line-shape of CeO2 has been investigated. X-ray diffraction analysis suggests that the lattice parameter and the Ce/La-O bond length gradually increase with La-doping. The Williamson-Hall plot method has been used to investigate structural coherency and lattice strain. Scanning electron microscopy and energy-dispersive X-ray spectroscopy have been carried out to study the particle size distribution and weight percentage doping of La in CeO2, respectively. Intrinsic and extrinsic oxygen vacancies have been understood in terms of ionic radii mismatch and the mixed oxidation state of the host and dopant. Furthermore, Raman spectroscopy results indicate the appearance of red-shift, peak broadening, and asymmetry with an antiresonance dip in the Raman line-shape (F2g). The observed changes in the Raman line-shape have been explained, considering electron-phonon-coupling-induced Fano scattering and phonon confinement effects. © 2021 American Chemical Society.en_US
dc.language.isoenen_US
dc.publisherAmerican Chemical Societyen_US
dc.sourceJournal of Physical Chemistry Cen_US
dc.subjectCerium oxideen_US
dc.subjectElectron-phonon interactionsen_US
dc.subjectEnergy dispersive spectroscopyen_US
dc.subjectParticle sizeen_US
dc.subjectParticle size analysisen_US
dc.subjectRaman spectroscopyen_US
dc.subjectRed Shiften_US
dc.subjectScanning electron microscopyen_US
dc.subjectSpectrum analysisen_US
dc.subjectX ray powder diffractionen_US
dc.subjectCrystallographic structureen_US
dc.subjectElectron phonon couplingsen_US
dc.subjectEnergy dispersive X ray spectroscopyen_US
dc.subjectExtrinsic oxygen vacancyen_US
dc.subjectPhonon confinement effecten_US
dc.subjectRaman line shapesen_US
dc.subjectWeight percentagesen_US
dc.subjectWilliamson-Hall ploten_US
dc.subjectBond lengthen_US
dc.titleDoping-Induced Combined Fano and Phonon Confinement Effect in La-Doped CeO2: Raman Spectroscopy Analysisen_US
dc.typeJournal Articleen_US
Appears in Collections:Department of Physics

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