Combustion synthesis of novel red phosphor Li0.9Y0.9-x-yZr0.1O2:Eux3+,Dyy3+ nanocrystals and emission-mechanism research

被引：7

作者：

Qiu, Zifeng ^{[1
]}

Zhou, Yuanyuan ^{[1
]}

Lue, Mengkai ^{[1
]}

Zhang, Aiyu ^{[1
]}

Ma, Qian ^{[1
]}

机构：

[1] Shandong Univ, State Key Lan Crstal Mat, Jinan 250100, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2008年 / 109卷 / 2-3期

关键词：

optical materials; luminescence;

D O I：

10.1016/j.matchemphys.2008.01.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel red luminescent material Li0.9Y0.9Zr0.1O2 doped with trivalent europium ions and dysprosium ions was synthesized by solution-combustion method. X-ray diffractometry, transmission electron microscopy and optical spectroscopy were used to valuate the crystallinity, the morphological characterization and the optical properties of the products. The results showed that combustion at 800 degrees C was enough to obtain highly crystalline and phase-pure samples. Photoluminescence spectra of Li0.9Y(0.9-x-y)Zr0.1O2:Eu-x(3+),Dy-y(3+) samples indicated the dominant red emissions (613 nm) at a single-wavelength ultraviolet excitation (395 nm) due to D-5(0) -> F-7(2) transition. The relation between the luminescence intensity and dopant concentration was also discussed. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：556 / 559

页数：4

共 14 条

[1] Low-temperature crystallization and highly enhanced photoluminescence of Gd2-xYxO3:Eu3+ by Li doping [J].

Byeon, SH ;

Ko, MG ;

Park, JC ;

Kim, DK .

CHEMISTRY OF MATERIALS, 2002, 14 (02) :603-608

[2] Development of luminescent materials with strong UV-blue absorption [J].

Hirata, GA ;

Ramos, FE ;

McKittrick, J .

OPTICAL MATERIALS, 2005, 27 (07) :1301-1304

[3] Growth of bulk Pr2-xCexCuO4+δ single crystals by B2O3 encapsulated flux technique [J].

Jayavel, R ;

Mochiku, T ;

Ooi, S ;

Hirata, K .

JOURNAL OF CRYSTAL GROWTH, 2002, 237 :792-795

[4] Red-emitting cerium-based phosphor materials for solid-state lighting applications [J].

Le Toquin, R. ;

Cheetham, A. K. .

CHEMICAL PHYSICS LETTERS, 2006, 423 (4-6) :352-356

[5] Role of B2O3 on the phase stability and long phosphorescence of SrAl2O4:Eu, Dy [J].

Nag, A ;

Kutty, TRN .

JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 354 (1-2) :221-231

[6] Novel red phosphors for solid state lighting; the system BixLn1-xVO4; Eu3+/Sm3+ (Ln = Y, Gd) [J].

Neeraj, S ;

Kijima, N ;

Cheetham, AK .

SOLID STATE COMMUNICATIONS, 2004, 131 (01) :65-69

[7] Photoluminescence of cerium-europium co-doped SiO2 phosphor prepared by a sol-gel process [J].

Ntwaeaborwa, OM ;

Swart, HC ;

Kroon, RE ;

Holloway, PH ;

Botha, JR .

SURFACE AND INTERFACE ANALYSIS, 2006, 38 (04) :458-461

[8] 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

[9] Crystal chemistry and luminescence of Ce3+-doped Lu2CaMg2(Si, Ge)3O12 and its use in LED based lighting [J].

Setlur, Anant A. ;

Heward, William J. ;

Gao, Yan ;

Srivastava, Alok M. ;

Chandran, R. Gopi ;

Shankar, Madras V. .

CHEMISTRY OF MATERIALS, 2006, 18 (14) :3314-3322

[10] Computational evolutionary optimization of red phosphor for use in tricolor white LEDs [J].

Sohn, KS ;

Park, DH ;

Cho, SH ;

Kwak, JS ;

Kim, JS .

CHEMISTRY OF MATERIALS, 2006, 18 (07) :1768-1772

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