White light generation controlled by changing the concentration of silver nanoparticles hosted by Ho<sup>3+</sup>/Tm<sup>3+</sup>/Yb<sup>3+</sup> doped GeO<inf>2</inf>-PbO glasses
Carregando...
Fonte externa
Fonte externa
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Acesso aberto
Fonte externa
Fonte externa
Resumo
Frequency upconversion (UC) experiments were performed with GeO<inf>2</inf>-PbO glasses, containing silver nanoparticles (NPs), doped with holmium (Ho<sup>3+</sup>), thulium (Tm<sup>3+</sup>) and ytterbium (Yb<sup>3+</sup>) ions. The samples were excited using a continuous-wave diode laser operating at 980 nm. The UC intensities and the colors of the samples were controlled by changing the concentrations of the rare-earth ions (REI) and the silver NPs nucleated inside the samples. The colors observed spanned the visible range from the red-yellow to the blue. For a particular combination of silver NPs and REI concentrations it was obtained white light generation corresponding to the CIE coordinates X = 0.33 and Y = 0.33.
Descrição
Palavras-chave
Energy transfer, Frequency upconversion, Germanate glass, Rare-earth ions, Silver nanoparticles, White light generation
Idioma
Inglês
Citação
Journal of Alloys and Compounds, v. 644, p. 155-158.
