dc.creator | Fernández Carrión, Alberto José | es |
dc.creator | Ocaña Jurado, Manuel | es |
dc.creator | García Sevillano, Jorge | es |
dc.creator | Cantelar, Eugenio | es |
dc.creator | Becerro Nieto, Ana Isabel | es |
dc.date.accessioned | 2017-05-22T12:33:04Z | |
dc.date.available | 2017-05-22T12:33:04Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Fernández Carrión, A.J., Ocaña Jurado, M., García Sevillano, J., Cantelar, E. y Becerro, A.I. (2014). New single-phase, white-light-emitting phosphors based on δ-Gd 2Si2O7 for solid-state lighting. Journal of Physical Chemistry C, 118 (31), 1-25. | |
dc.identifier.issn | 1932-7447 | es |
dc.identifier.uri | http://hdl.handle.net/11441/60256 | |
dc.description.abstract | Two new white-light (WL)-emitting phosphors (δ-Gd2Si 2O7:Dy and δ-Gd2Si2O 7:Eu,Tb) have been synthesized by the sol-gel method. The Gd-Ln 3+ (Ln3+= Dy3+, Tb3+, Eu 3+) energy-transfer band has been used to excite both phosphors, which provides an enhancement of the Ln3+ emissions. First, WL was generated from δ-Gd2Si2O7:xDy thanks to the particular ratio of the blue and yellow emissions observed in all three compositions, which had chromatic coordinates of x = 0.30, y = 0.33 and CCT values of between 7077 and 6721 K. The decay curves of the main transitions of Dy3+ showed a maximum lifetime value for δ-Gd 2Si2O7:0.5%Dy, which is, therefore, the most efficient doping level. Second, a broad spectral range, single-phase, WL-emitting phosphor was generated by codoping δ-Gd2Si 2O7 with Tb3+ and Eu3+. The composition δ-Gd2Si2O7:0.3%Eu 3+;0.8%Tb3+ showed CIE coordinates well inside the ideal WL region of the CIE diagram and a CCT value of 5828 K. The single-phase WL-emitting phosphors presented in this paper are promising materials to be used in white solid-state lighting systems and field-emission displays due to the advantages provided both by Gd3+ ions and by the high thermal and chemical stabilities of the rare earth disilicate matrix. | es |
dc.description.sponsorship | Junta de Andalucía JA FQM 06090 | es |
dc.description.sponsorship | CSIC 201460E005 | es |
dc.description.sponsorship | MEC MAT2011-23593 MAT2012-34919-SONAMFIBIOS | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | American Chemical Society | es |
dc.relation.ispartof | Journal of Physical Chemistry C, 118 (31), 1-25. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Rare earth silicates | es |
dc.subject | Luminescence | es |
dc.subject | LEDs | es |
dc.subject | Energy transfer | es |
dc.title | New single-phase, white-light-emitting phosphors based on δ-Gd 2Si2O7 for solid-state lighting | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Química Inorgánica | es |
dc.relation.projectID | JA FQM 06090 | es |
dc.relation.projectID | 201460E005 | es |
dc.relation.projectID | MAT2011-23593 | es |
dc.relation.projectID | MAT2012-34919-SONAMFIBIOS | es |
dc.relation.publisherversion | 10.1021/jp505524g | es |
idus.format.extent | 25 p. | es |
dc.journaltitle | Journal of Physical Chemistry C | es |
dc.publication.volumen | 118 | es |
dc.publication.issue | 31 | es |
dc.publication.initialPage | 1 | es |
dc.publication.endPage | 25 | es |