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Raman-active Fröhlich optical phonon mode in arsenic implanted ZnO

Ye, J. D.; Tripathy, S.; Ren, Fang-Fang; Sun, X. W.; Lo, G. Q.; Teo, K. L.

Description

In this letter, using both off-resonant and resonant Raman spectroscopic techniques, the correlation of optical phonons and structural disorder in As⁺implantedZnO single crystals has been investigated. An additional broad peak shoulder at 550 cm¯¹ between the transverse optical and longitudinal optical (LO) phonons was clarified to be resonant Fröhlich optical phonon mode in the framework of effective dielectric function. Under resonance condition, an asymmetric broadening and softening of the...[Show more]

dc.contributor.authorYe, J. D.
dc.contributor.authorTripathy, S.
dc.contributor.authorRen, Fang-Fang
dc.contributor.authorSun, X. W.
dc.contributor.authorLo, G. Q.
dc.contributor.authorTeo, K. L.
dc.date.accessioned2015-09-25T04:26:14Z
dc.date.available2015-09-25T04:26:14Z
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/1885/15710
dc.description.abstractIn this letter, using both off-resonant and resonant Raman spectroscopic techniques, the correlation of optical phonons and structural disorder in As⁺implantedZnO single crystals has been investigated. An additional broad peak shoulder at 550 cm¯¹ between the transverse optical and longitudinal optical (LO) phonons was clarified to be resonant Fröhlich optical phonon mode in the framework of effective dielectric function. Under resonance condition, an asymmetric broadening and softening of the LO phonon along with a blueshifted luminescent peak revealed the decreasing phonon coherent length and nanocrystallization with increasing fluence, respectively, in good agreement with the observations of transmission electron microscopy and atomic force microscopy.
dc.description.sponsorshipThis work was supported by the Singapore Agency for Science, Technology and Research A*STAR, under SERC Grant No. 0521260095.
dc.publisherAmerican Institute of Physics
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0003-6951..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 25/09/15). Copyright 2009 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 (Ye, J. D., et al. "Raman-active Frohlich optical phonon mode in arsenic implanted ZnO." Applied Physics Letters 94.1 (2009): 11913.) and may be found at https://doi.org/10.1063/1.3067997
dc.sourceApplied Physics Letters
dc.subjectKeywords: Arsenic; Clarification; Nanocrystallization; Optical correlation; Phonons; Semiconducting zinc compounds; Zinc oxide; Asymmetric broadening; Atomic forces; Blueshifted; Coherent lengths; Dielectric functions; Fluence; Lo phonons; Luminescent peaks; Optica
dc.titleRaman-active Fröhlich optical phonon mode in arsenic implanted ZnO
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume94
dc.date.issued2009-01-08
local.identifier.absfor020504
local.identifier.absfor090605
local.identifier.ariespublicationf5625xPUB8140
local.publisher.urlhttps://www.aip.org/
local.type.statusPublished Version
local.contributor.affiliationYe, Jiandong, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National University
local.contributor.affiliationTripathy, S., Institute of Materials Research and Engineering, A*STAR, Singapore
local.contributor.affiliationRen, Fang-Fang, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National University
local.contributor.affiliationSun, X.W., Institute of Microelectronics, A STAR, Singapore
local.contributor.affiliationLo, G.Q., Institute of Microelectronics, A STAR, Singapore
local.contributor.affiliationTeo, Kie Leong, National University of Singapore, Singapore
local.bibliographicCitation.issue1
local.bibliographicCitation.startpage011913
local.identifier.doi10.1063/1.3067997
local.identifier.absseo970102
dc.date.updated2016-02-24T09:39:51Z
local.identifier.scopusID2-s2.0-58149513250
CollectionsANU Research Publications

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