White light generation controlled by changing the concentration of silver nanoparticles hosted by Ho3+/Tm3+/Yb3+ doped GeO2-PbO glasses

JOURNAL OF ALLOYS AND COMPOUNDS

卷:644

Article

Camilo, Mauricio E.^1,2  Silva, Elton de O.¹  Kassab, Luciana R. P.¹  Garcia, Jose A. M.^1,2  de Araujo, Cid B.³ 

[1] CEETEPS UNESP, Fac Tecnol Sao Paulo FATEC SP, Sao Paulo, SP, Brazil

[2] Univ Sao Paulo, Escola Politecn, Dept Engn Sistemas Eletron, BR-09500900 Sao Paulo, SP, Brazil

[3] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil

关键词: Frequency upconversion;    Rare-earth ions;    Energy transfer;    Silver nanoparticles;    Germanate glass;    White light generation;   

DOI  :  10.1016/j.jallcom.2015.04.108

来源: Elsevier

【 摘 要 】

Frequency upconversion (UC) experiments were performed with GeO2-PbO glasses, containing silver nanoparticles (NPs), doped with holmium (Ho3+), thulium (Tm3+) and ytterbium (Yb3+) 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 = 033. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

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