Green and red up-conversion emissions of Er3+-Yb3+Co-doped TiO2 nanocrystals prepared by sol-gel method

被引：46

作者：

Shang, Qingkun ^{[1
,2
]}

Yu, Hui ^{[2
]}

Kong, Xianggui ^{[1
]}

Wang, Hongdan ^{[2
]}

Wang, Xin ^{[1
]}

Sun, Yajuan ^{[1
]}

Zhang, Youlin ^{[1
]}

Zeng, Qinghui ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Process, Changchun 130033, Peoples R China

[2] NE Normal Univ, Fac Chem, Changchun 130024, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2008年 / 128卷 / 07期

关键词：

up-conversion emissions; Er3+-Yb3+ co-doped; TiO2; nanocrystal;

D O I：

10.1016/j.jlumin.2007.11.097

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, green and red up-conversion emissions of Er3+-Yb3+ co-doped TiO2 nanocrystals were reported. The phase structure, particle size and optical properties of Er3+-Yb3+ co-doped TiO2 nanocrystals samples were characterized by using X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-vis-NIR absorption spectra and photoluminescence (PL) spectra. Green and red up-conversion emissions in the range of 520-570 nm (H-2(11/2), S-4(3/2) -> I-4(15/2)) and 640-690 nm (F-4(9/2) -> I-4(15/2)) were observed for the Er3+-Yb3+ co-doped TiO2 nanocrystals. The visible up-conversion mechanism and temperature dependence of up-conversion emission for Er3+ in TiO2 nanocrystals were discussed in detail. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：1211 / 1216

页数：6

共 17 条

[1] Comparison of visible fluorescence properties between sol-gel derived Er3+-Yb3+ and Er3+-Y3+ co-doped TiO2 films [J].

Chen, SY ;

Ting, CC ;

Hsieh, WF .

THIN SOLID FILMS, 2003, 434 (1-2) :171-177

[2] The surface science of titanium dioxide [J].

Diebold, U .

SURFACE SCIENCE REPORTS, 2003, 48 (5-8) :53-229

[3] Energy transfer processes in Er3+-doped and Er3+,Pr3+-codoped ZBLAN glasses [J].

Golding, PS ;

Jackson, SD ;

King, TA ;

Pollnau, M .

PHYSICAL REVIEW B, 2000, 62 (02) :856-864

[4] Highly efficient infrared-to-visible energy upconversion in Er3+:Y2O3 [J].

Kapoor, R ;

Friend, CS ;

Biswas, A ;

Prasad, PN .

OPTICS LETTERS, 2000, 25 (05) :338-340

[5] Frequency upconversion in Er3+-doped fluoroindate-glasses pumped at 1.48 mu m [J].

Maciel, GS ;

deAraujo, CB ;

Messaddeq, Y ;

Aegerter, MA .

PHYSICAL REVIEW B, 1997, 55 (10) :6335-6342

[6]

Nii H., 1998, J LUMIN, V116, P76

[7] Fluorescence upconversion properties of Er3+-doped TiO2 and BaTiO3 nanocrystallites [J].

Patra, A ;

Friend, CS ;

Kapoor, R ;

Prasad, PN .

CHEMISTRY OF MATERIALS, 2003, 15 (19) :3650-3655

[8] Power dependence of upconversion luminescence in lanthanide and transition-metal-ion systems [J].

Pollnau, M ;

Gamelin, DR ;

Lüthi, SR ;

Güdel, HU ;

Hehlen, MP .

PHYSICAL REVIEW B, 2000, 61 (05) :3337-3346

[9] The effect of particle morphology and crystallite size on the upconversion luminescence properties of erbium and ytterbium co-doped yttrium oxide phosphors [J].

Silver, J ;

Martinez-Rubio, MI ;

Ireland, TG ;

Fern, GR ;

Withnall, R .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (05) :948-953

[10] GREEN INFRARED-PUMPED ERBIUM UPCONVERSION LASER [J].

SILVERSMITH, AJ ;

LENTH, W ;

MACFARLANE, RM .

APPLIED PHYSICS LETTERS, 1987, 51 (24) :1977-1979

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