dc.creator | Pacchioni, Gianfranco | es |
dc.creator | Ieranò, Gianluigi | es |
dc.creator | Márquez Cruz, Antonio Marcial | es |
dc.date.accessioned | 2016-11-15T08:57:44Z | |
dc.date.available | 2016-11-15T08:57:44Z | |
dc.date.issued | 1998 | |
dc.identifier.citation | Pacchioni, G., Ieranò, G. y Márquez Cruz, A.M. (1998). Optical absorption and nonradiative decay mechanism of E′ center in silica. Physical Review Letters, 81 (2), 377-380. | |
dc.identifier.issn | 0031-9007 | es |
dc.identifier.uri | http://hdl.handle.net/11441/48571 | |
dc.description.abstract | We report ab initio configuration interaction calculations on the optical transitions of the E′ center, a hole trapped at an oxygen vacancy, ( - O)3Si• +(O - )3, in silica. We found two competing excitation mechanisms: (1) promotion of one electron from an O(2p) valence band orbital to the singly occupied Si dangling bond; (2) charge transfer (CT) transition from ( - O)3Si• to +Si(O - )3. The two excitations occur at similar energies, ≈5.8-6 eV (5.85 eV in the experiment), but only the CT has a strong intensity. The excitation is followed by a complex nonradiative decay process which may explain the absence of luminescence for this center | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | American Physical Society | es |
dc.relation.ispartof | Physical Review Letters, 81 (2), 377-380. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Optical absorption and nonradiative decay mechanism of E′ center in silica | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Química Física | es |
dc.relation.publisherversion | 10.1103/PhysRevLett.81.377 | es |
dc.identifier.doi | 10.1103/PhysRevLett.81.377 | es |
idus.format.extent | 4 p. | es |
dc.journaltitle | Physical Review Letters | es |
dc.publication.volumen | 81 | es |
dc.publication.issue | 2 | es |
dc.publication.initialPage | 377 | es |
dc.publication.endPage | 380 | es |
dc.identifier.idus | https://idus.us.es/xmlui/handle/11441/48571 | |