Flame synthesis and effects of host materials on Yb3+/Er3+ co-doped upconversion nanophosphors

被引：39

作者：

Kong, Wenjun ^{[1
]}

Shan, Jingning ^{[1
]}

Ju, Yiguang ^{[1
]}

机构：

[1] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 06期

关键词：

Upconversion nanophosphors; Flame synthesis; Rare-earth ions; Oxides; LUMINESCENCE; Y2O3; GREEN;

D O I：

10.1016/j.matlet.2009.12.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The upconversion nanophosphors (UCNPs) of Yb3+/Er3+ co-doped into Y2O3, La2O3, and Gd2O3 were synthesized via the combustion method and characterized by powder X-ray diffractometer (XRD), scanning electron microscopy (SEM) and upconversion fluorescence spectroscopy. The characterization results showed that at the same flame temperature (2705 K) and precursor concentration (0.1 M), pure monoclinic and cubic-phase phosphors were achieved on Gd2O3 and Y2O3 hosted UCNPs, respectively; while the mixed phases were observed on La2O3 hosted UCNPs. Further annealing process at 850 degrees C produced pure cubic-phase La2O3:Yb3+,Er3+ UCNPs; while there was no phase transition observed on Gd2O3:Yb3+,Er3+ UCNPs. The dependence of upconversion luminescence on precursor concentrations and host materials was then examined. The La2O3 and Gd2O3 hosts were shown to be the promising alternates for the commonly used Y2O3 hosts for rare-earth doped phosphors. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：688 / 691

页数：4

共 19 条

[11] Red, green, and blue upconversion luminescence of trivalent-rare-earth ion-doped Y2O3 nanocrystals
Matsuura, D
[J]. APPLIED PHYSICS LETTERS, 2002, 81 (24) : 4526 - 4528
[12] Mechanisms of near-infrared to visible upconversion in CsCdBr3:Ho3+
Muller, P
Wermuth, M
Gudel, HU
[J]. CHEMICAL PHYSICS LETTERS, 1998, 290 (1-3) : 105 - 111
[13] NAZAROV M, 2003, J PHYS SCI, V3, P311
[14] Flame synthesis of Y2O3:Eu nanophosphors using ethanol as precursor solvents
Qin, X
Ju, YG
Bernhard, S
Yao, N
[J]. JOURNAL OF MATERIALS RESEARCH, 2005, 20 (11) : 2960 - 2968
[15] Flame synthesis and characterization of rare-earth (Er3+, Ho3+, and Tm3+) doped upconversion nanophosphors
Qin, Xiao
Yokomori, Takeshi
Ju, Yiguang
[J]. APPLIED PHYSICS LETTERS, 2007, 90 (07)
[16] Europium-doped yttrium silicate nanophosphors prepared by flame synthesis
Qin, Xiao
Ju, Yiguang
Bernhard, Stefan
Yao, Nan
[J]. MATERIALS RESEARCH BULLETIN, 2007, 42 (08) : 1440 - 1449
[17] Synthesis of monodisperse hexagonal NaYF4: Yb, Ln (Ln = Er, Ho and Tm) upconversion nanocrystals in TOPO
Shan, Jingning
Qin, Xiao
Yao, Nan
Ju, Yiguang
[J]. NANOTECHNOLOGY, 2007, 18 (44)
[18] Three-photon upconversion luminescence phenomenon for the green levels in Er3+/Yb3+ codoped cubic nanocrystalline yttria
Song, HW
Sun, BJ
Wang, T
Lu, SZ
Yang, LM
Chen, BJ
Wang, XJ
Kong, XG
[J]. SOLID STATE COMMUNICATIONS, 2004, 132 (06) : 409 - 413
[19] Rare earth compound nanotubes
Wang, X
Sun, XM
Yu, DP
Zou, BS
Li, YD
[J]. ADVANCED MATERIALS, 2003, 15 (17) : 1442 - 1445

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