White light generation in Tm3+/Ho3+/Yb3+ doped PbO-GeO2 glasses excited at 980 nm

被引：14

作者：

Camilo, M. E. ^{[1
,2
]}

Silva, E. de O. ^{[1
]}

de Assumpcao, Thiago A. A. ^{[1
,2
]}

Kassab, Luciana R. P. ^{[1
]}

de Araujo, Cid B. ^{[3
]}

机构：

[1] Univ Estadual Paulista, Fac Tecnol Sao Paulo FATEC SP, CEETEPS, Sao Paulo, Brazil

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

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

来源：

JOURNAL OF APPLIED PHYSICS | 2013年 / 114卷 / 16期

关键词：

UP-CONVERSION; NANOCRYSTALS; EMISSION;

D O I：

10.1063/1.4827863

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report white light generation (WLG) in Tm3+/Ho3+/Yb3+ doped PbO-GeO2 glass under continuous-wave excitation at 980 nm. Intense blue (approximate to 477 nm), green (approximate to 545 nm), and red (approximate to 658 nm) emissions were simultaneously observed at room temperature. The blue light is mainly due to the Tm3+ transition (1)G(4) -> H-3(6). The green emission is due to the Ho3+ transitions (S-5(2), F-5(4)) -> I-5(8) and the red luminescence is due to the Ho3+ transition F-5(5) -> I-5(8) and transition (1)G(4) -> F-3(4) associated to the Tm3+ ions. Energy transfer processes from Yb3+ to Ho3+ and Yb3+ to Tm3+ ions were responsible for the WLG. Adjusting the relative concentration of the rare-earth (RE) ions, we could obtain emission in the white region of the CIE chromaticity diagram. The present results indicate that PbO-GeO2 glass has large potential to be used for white displays. (C) 2013 AIP Publishing LLC.

引用

页数：4

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