High Nd3+→Yb3+ energy transfer efficiency in tungsten-tellurite glass: A promising converter for solar cells

dc.contributor.authorCosta, Francine Bettio [UNESP]
dc.contributor.authorYukimitu, Keizo [UNESP]
dc.contributor.authorNunes, Luiz Antonio de Oliveira
dc.contributor.authorFigueiredo, Marcio da Silva
dc.contributor.authorSilva, Junior Reis
dc.contributor.authorAndrade, Luis Humberto da Cunha
dc.contributor.authorLima, Sandro Marcio
dc.contributor.authorMoraes, João Carlos Silos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal da Grande Dourados-UFGD
dc.contributor.institutionUniversidade Estadual de Mato Grosso do Sul (UEMS)
dc.description.abstractThis work reports on the energy transfer efficiency for Nd3+/Yb3+ co-doped tellurite glasses (80TO2-20WO3, in mol%,). The correlation between Yb3+ ion concentration and the downconversion mechanism was investigated using optical and thermal lens spectroscopies, which enabled investigation of the radiative and nonradiative processes, respectively, involved in energy transfer from neodymium to ytterbium. The Nd3+ near-infrared fluorescence disappeared almost entirely when the maximum concentration of Yb3+ ions (4 mol%) was doped into the host. In contrast, there was a corresponding increase in the ytterbium emission at around 980 nm. When ytterbium was added, there was also a simultaneous reduction in the amount of heat generated by the sample due to a reduction in the nonradiative decay rate, corroborating the suspected high energy transfer efficiency of Nd3+→Yb3+. The results indicate that tungsten-tellurite glasses may be of potential use in solar cells for matching the solar emission spectrum to the semiconductor cell.en
dc.description.affiliationFaculdade de Engenharia Universidade Estadual Paulista - UNESP
dc.description.affiliationLaboratório de Laser e Aplicações Instituto de Física de São Carlos-IFSC Universidade de São Paulo-USP
dc.description.affiliationUniversidade Federal da Grande Dourados-UFGD
dc.description.affiliationGrupo de Espectroscopia Óptica e Fototérmica Programa de Pós-graduação em Recursos Naturais Universidade Estadual de Mato Grosso do Sul-UEMS
dc.description.affiliationUnespFaculdade de Engenharia Universidade Estadual Paulista - UNESP
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de Mato Grosso do Sul
dc.description.sponsorshipIdFAPESP: 2013/19747-9
dc.description.sponsorshipIdCNPq: 305063/2012-0
dc.description.sponsorshipIdCNPq: 305412/2014-0
dc.description.sponsorshipIdCNPq: 306970/2011-2
dc.description.sponsorshipIdFundação de Apoio ao Desenvolvimento do Ensino, Ciência e Tecnologia do Estado de Mato Grosso do Sul: 59/300.031/2015
dc.identifier.citationJournal of the American Ceramic Society, v. 100, n. 5, p. 1956-1962, 2017.
dc.relation.ispartofJournal of the American Ceramic Society
dc.rights.accessRightsAcesso restrito
dc.subjectdownconversion process
dc.subjectenergy-transfer efficiency
dc.subjectoptical spectroscopy
dc.subjectTellurite glasses
dc.subjectthermal lens spectroscopy
dc.titleHigh Nd3+→Yb3+ energy transfer efficiency in tungsten-tellurite glass: A promising converter for solar cellsen