White light upconversion of nanocrystalline Er/Tm/Yb doped tetragonal Gd4O3F6

被引：75

作者：

Passuello, T. ^{[1
,2
]}

Piccinelli, F. ^{[1
,2
]}

Pedroni, M. ^{[1
,2
]}

Bettinelli, M. ^{[1
,2
]}

Mangiarini, F. ^{[3
]}

Naccache, R. ^{[3
]}

Vetrone, F. ^{[3
]}

Capobianco, J. A. ^{[3
]}

Speghini, A. ^{[1
,2
]}

机构：

[1] Univ Verona, Lab Chim Stato Solido, DB, I-37134 Verona, Italy

[2] INSTM, UdR Verona, I-37134 Verona, Italy

[3] Concordia Univ, Dept Chem & Biochem, Montreal, PQ H4B 1R6, Canada

来源：

OPTICAL MATERIALS | 2011年 / 33卷 / 04期

关键词：

Lanthanides; Upconversion; Nanocrystals; White light; ION SYSTEMS; LUMINESCENCE; LANTHANIDE; GLASSES; YB3+;

D O I：

10.1016/j.optmat.2010.11.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Er3+, Tm3+ and Yb3+ codoped gadolinium oxyfluoride nanoparticles were prepared in aqueous solution by a simple coprecipitation method, under alkaline conditions. After a suitable heat treatment at 500 degrees C, the nanocrystalline powders were found to be single phase tetragonal Gd4O3F6 after a structural characterization using X-ray powder diffraction. Transmission electron microscopy images showed that the average size of the nanoparticles was approximately 50 nm. Following appropriate lanthanide ion doping, the nanocrystals show bright white light upconversion upon excitation at 980 nm using a diode laser as the excitation source. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：643 / 646

页数：4

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