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Observation of phonon sideband emission in intrinsic InN nanowires: a photoluminescence and micro-Raman scattering study.
MedLine Citation:
PMID:  23018196     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
In this work, photoluminescence and micro-Raman scattering experiments were performed on undoped InN nanowires. It was found that, besides the main photoluminescence peak, a clear phonon sideband emission peak, with an extremely narrow linewidth ∼9 meV, was measured. The phonon spectrum revealed by micro-Raman scattering indicates only uncoupled LO phonons are involved in such phonon sideband emission. The clearly resolved phonon sideband emission peak with a narrow linewidth, together with the uncoupled LO phonon modes, suggests the superior quality of the presented InN nanowires, i.e., extremely low residual electron density and the absence of surface electron accumulation, which is consistent with the physical properties of intrinsic InN nanowires as in the previous studies. The detailed phonon sideband properties are also discussed in the text.
Authors:
S Zhao; Q Wang; Z Mi; S Fathololoumi; T Gonzalez; M P Andrews
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Publication Detail:
Type:  Journal Article     Date:  2012-09-27
Journal Detail:
Title:  Nanotechnology     Volume:  23     ISSN:  1361-6528     ISO Abbreviation:  Nanotechnology     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-09-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  England    
Other Details:
Languages:  eng     Pagination:  415706     Citation Subset:  IM    
Affiliation:
Department of Electrical and Computer Engineering, McGill University, 3480 University Street, Montreal, QC H3A 2A7, Canada.
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