Mostrar el registro sencillo del ítem
dc.contributor.author | Marí, B. | es_ES |
dc.contributor.author | Singh, Krishan Chander | es_ES |
dc.contributor.author | Verma, Naveen | es_ES |
dc.contributor.author | Jindal, J. | |
dc.date.accessioned | 2017-05-24T11:53:23Z | |
dc.date.available | 2017-05-24T11:53:23Z | |
dc.date.issued | 2016-08-15 | |
dc.identifier.issn | 0272-8842 | |
dc.identifier.uri | http://hdl.handle.net/10251/81708 | |
dc.description.abstract | [EN] Yb3þ doped ZnO/MgO nanocomposite were prepared by combustion synthesis method. The samples were further heated to 1000 °C to improve their crystallinity and photoluminescent efficiency. The concentrations of Yb3þ and Mg2þ were varied between 1–2% and 5–70% respectively in prepared samples. The nano-powders were characterized by Scanning Electron Microscopy and X-ray Diffraction for morphology and structural determination. XRD studies have revealed the wurtzite structure for MgxZn1"xO for Mg concentrations below 30%. Higher concentrations of Mg results in Yb3þ doped ZnO/ MgO nanocomposite containing three phases; the wurzite hexagonal phase typical of ZnO, the cubic phase of MgO and a small amount of cubic Yb2O3 phase. As expected, the amount of cubic phase in nanopowders increased with the increase of Mg concentration in ZnO. The crystallite size of ZnO/MgO composites decreased from 55 nm to 30 nm with increase of Mg content. SEM images of Yb3þ doped ZnO/MgO nanocomposite with higher Mg content (450%) showed clearly distinct hexagonal and cubical shaped nano-particles. Photoluminescent emission showed a broad band in the range (435 nm to 700 nm). Pure ZnO nano-phosphor showed an emission peak around 545 nm, which is blue shifted with Mg content. The photoluminescence intensity increased with increase of Mg content in ZnO and it became maximum with 30% Mg concentration. Time resolved decay curves of photoluminescence indicated decay time in microsecond time scale | es_ES |
dc.description.sponsorship | This work was supported by Ministerio de Economia y Competitividad (ENE2013-46624-C4-4-R), Generalitat Valenciana (PROMETEUS-II/2014/044) and the European Commission through NanoCIS project (FP7-PEOPLE-2010-IRSES ref. 269279). | en_EN |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Ceramics International | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | ZnMgO | es_ES |
dc.subject | Yb Doping | es_ES |
dc.subject | Combustion method | es_ES |
dc.subject | Photoluminescence | es_ES |
dc.subject | Nanocomposites | es_ES |
dc.subject.classification | FISICA APLICADA | es_ES |
dc.title | Optical properties of Yb3+ doped ZnO/MgO nanocomposites | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.ceramint.2016.05.079 | |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/269279/EU/Development of a new generation of CIGS-based solar cells/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//ENE2013-46624-C4-4-R/ES/MEJORA DE LA CONVERSION DE ENERGIA SOLAR MEDIANTE PROCESOS DE EXCITACION ELECTRONICA EN DOS ETAPAS. APROXIMACION ELECTROQUIMICA./ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/GVA//PROMETEOII%2F2014%2F044/ES/Técnicas de Fabricación Avanzada y Control de Calidad de nuevos materiales multifuncionales en movilidad sostenible/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny | es_ES |
dc.description.bibliographicCitation | Marí, B.; Singh, KC.; Verma, N.; Jindal, J. (2016). Optical properties of Yb3+ doped ZnO/MgO nanocomposites. Ceramics International. 42(11):13018-13023. https://doi.org/10.1016/j.ceramint.2016.05.079 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.ceramint.2016.05.079 | es_ES |
dc.description.upvformatpinicio | 13018 | es_ES |
dc.description.upvformatpfin | 13023 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 42 | es_ES |
dc.description.issue | 11 | es_ES |
dc.relation.senia | 335950 | es_ES |
dc.identifier.eissn | 1873-3956 | |
dc.contributor.funder | European Commission | |
dc.contributor.funder | Ministerio de Economía y Competitividad | |
dc.contributor.funder | Generalitat Valenciana |