Down-conversion process in Tb3+-Yb3+ co-doped Calibo glasses

dc.creatorTerra, I. A. A.
dc.creatorBorrero-Gonzalez, L. J.
dc.creatorFigueredo, T. R.
dc.creatorAlmeida, J. M. P.
dc.creatorHernandes, Antonio Carlos
dc.creatorNunes, Luiz Antonio de Oliveira
dc.creatorMalta, O. L.
dc.date.accessioned2013-11-06T16:30:19Z
dc.date.accessioned2018-07-04T16:21:26Z
dc.date.available2013-11-06T16:30:19Z
dc.date.available2018-07-04T16:21:26Z
dc.date.created2013-11-06T16:30:19Z
dc.date.issued2012
dc.identifierJOURNAL OF LUMINESCENCE, AMSTERDAM, v. 132, n. 7, supl. 1, Part 1, pp. 1678-1682, JUL, 2012
dc.identifier0022-2313
dc.identifierhttp://www.producao.usp.br/handle/BDPI/42379
dc.identifier10.1016/j.jlumin.2012.02.019
dc.identifierhttp://dx.doi.org/10.1016/j.jlumin.2012.02.019
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1634780
dc.description.abstractThe down-conversion process in Tb3+-Yb3+ co-doped Calibo glasses was studied. The emission, excitation and time-resolved measurements indicated the existence of an energy conversion through the excitation of Tb3+ ions to near-infrared emission by Yb3+ ions. The emission intensity dependence on excitation power confirms that the one-photon process is responsible for the Yb3+ emission. An enhanced Yb3+ emission was observed with Yb3+ doping and an optimal energy transfer efficiency of 32% was obtained before reaching near-infrared emission quenching. The mechanism of the non-resonant energy transfer from Tb3+ to Yb3+ is discussed in terms of the Tb3+-Yb3+ cross-relaxation and multiphonon decay processes. (C) 2012 Elsevier B.V. All rights reserved.
dc.languageeng
dc.publisherELSEVIER SCIENCE BV
dc.publisherAMSTERDAM
dc.relationJOURNAL OF LUMINESCENCE
dc.rightsCopyright ELSEVIER SCIENCE BV
dc.rightsclosedAccess
dc.subjectDOWN-CONVERSION
dc.subjectENERGY TRANSFER
dc.subjectCALIBO
dc.subjectTB3+-YB3+ IONS
dc.titleDown-conversion process in Tb3+-Yb3+ co-doped Calibo glasses
dc.typeArtículos de revistas


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