dc.rights.license | http://creativecommons.org/licenses/by-nc-sa/3.0/ve/ | es_VE |
dc.contributor.author | Rincón, C. | |
dc.contributor.author | Marcano García, Gustavo José | |
dc.contributor.author | Wasím, Syed M. | |
dc.contributor.author | Marín, G. | |
dc.contributor.author | Villarreal, Manuel | |
dc.contributor.author | Sánchez Pérez, Gerardo | |
dc.date.accessioned | 2019-05-29T14:40:04Z | |
dc.date.available | 2019-05-29T14:40:04Z | |
dc.date.issued | 2019-05-29 | |
dc.identifier.uri | http://www.saber.ula.ve/handle/123456789/45789 | |
dc.description.abstract | In the present work we report on the analysis of the Urbach’s tail in pure and Mn-doped Cu2GeSe3
samples having small deviation from its ideal stoichiometry. It is found that the high values of the
phonon energy h?p involved in the electrons/excitons-phonon interaction in the
formation of this tail are due to structural disorder caused by deviation from ideal stoichiometry.
Values of h?p for pure and doped samples were found to be 48, 60 and 81 meV, respectively, whereas the
phonon energy for an entirely ordered Cu2GeSe3 sample was estimated to be
about 25 meV. | es_VE |
dc.language.iso | en | es_VE |
dc.publisher | SaberULA | es_VE |
dc.rights | info:eu-repo/semantics/openAccess | es_VE |
dc.title | Urbach’s tail in the absorption spectra of Cu2GeSe3 semiconducting compound | es_VE |
dc.type | info:eu-repo/semantics/article | es_VE |
dcterms.dateAccepted | 27-09-2018 | |
dcterms.dateSubmitted | 20-07-2018 | |
dc.description.colacion | 5-9 | es_VE |
dc.description.email | gmarcano@ula.ve | es_VE |
dc.description.email | wasim@ula.ve | es_VE |
dc.description.email | mavu@ula.ve | es_VE |
dc.subject.institucion | Universidad de Los Andes | es_VE |
dc.subject.keywords | Optical absorption | es_VE |
dc.subject.keywords | Urbach’s tail | es_VE |
dc.subject.keywords | Ternary compound | es_VE |
dc.subject.keywords | Structural defects | es_VE |
dc.subject.tipo | Artículos | es_VE |
dc.type.media | Texto | es_VE |