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Valence-band splitting energies in wurtzite InP nanowires : Photoluminescence spectroscopy and ab initio calculations

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Valence-band splitting energies in wurtzite InP nanowires : Photoluminescence spectroscopy and ab initio calculations

dc.contributor.author	Gadret, E. G.
dc.contributor.author	Dias, G. O.
dc.contributor.author	Dacal, L. C. O.
dc.contributor.author	Morais de Lima, Mauricio, Jr.
dc.contributor.author	Ruffo, C. V. R. S.
dc.contributor.author	Iikawa, F.
dc.contributor.author	Brasil, M. J. S. P.
dc.contributor.author	Chiaramonte, T.
dc.contributor.author	Cotta, M.A.
dc.contributor.author	Tizei, L. H. G.
dc.contributor.author	Ugarte, D.
dc.contributor.author	Cantarero Sáez, Andrés
dc.date.accessioned	2013-11-25T12:19:48Z
dc.date.available	2013-11-25T12:19:48Z
dc.date.issued	2010
dc.identifier.citation	Gadret, E. G. Dias, G. O. Dacal, L. C. O. Morais de Lima Marques, Mauricio Ruffo, C. V. R. S. Iikawa, F. Brasil, M. J. S. P. Chiaramonte, T. Cotta, M. A. Tizei, L. H. G. Ugarte, D. Cantarero Saez, Andrés 2010 Valence-band splitting energies in wurtzite InP nanowires : Photoluminescence spectroscopy and ab initio calculations Physical Review B 82 125327
dc.identifier.uri	http://hdl.handle.net/10550/31411
dc.description.abstract	We investigated experimentally and theoretically the valence-band structure of wurtzite InP nanowires. The wurtzite phase, which usually is not stable for III-V phosphide compounds, has been observed in InP nanowires. We present results on the electronic properties of these nanowires using the photoluminescence excitation technique. Spectra from an ensemble of nanowires show three clear absorption edges separated by 44 meV and 143 meV, respectively. The band edges are attributed to excitonic absorptions involving three distinct valence-bands labeled: A, B, and C. Theoretical results based on"ab initio" calculation gives corresponding valence-band energy separations of 50 meV and 200 meV, respectively, which are in good agreement with the experimental results.
dc.relation.ispartof	Physical Review B, 2010, vol. 82, p. 125327
dc.subject	Nanoestructures
dc.title	Valence-band splitting energies in wurtzite InP nanowires : Photoluminescence spectroscopy and ab initio calculations
dc.type	journal article	es_ES
dc.date.updated	2013-11-25T12:19:48Z
dc.identifier.doi	10.1103/PhysRevB.82.125327
dc.identifier.idgrec	061138
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1103/PhysRevB.82.125327