Optical and structural properties of nanosized ZnGa2O4:Cr3+ phosphor

被引：126

作者：

Kim, JS ^{[1
]}

Park, HL ^{[1
]}

机构：

[1] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea

来源：

SOLID STATE COMMUNICATIONS | 2004年 / 131卷 / 12期

关键词：

zinc gallate; nanocrystal; optical properties; luminescence;

D O I：

10.1016/j.ssc.2004.07.026

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 [凝聚态物理];

摘要：

Nanosized ZnGa2O4:Cr3+ powder is synthesized through hydrothermal method. The average particle size is 20 nm and they are spherical in shape. The excitation band from the charge transfer between Cr3+-O2- shows a blueshift behavior due to quantum confinement effect. X-ray diffraction pattern, Fourier transform-infrared spectrum, and electron paramagnetic resonance signal indicate that nanosized ZnGa2O4:Cr3+ phosphor shows many defect-related energy states and heavy lattice distortion in comparison with bulk ZnGa2O4:Cr3+ phosphor. Many defect states result in more nonradiative loss and shorter decay time. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：735 / 738

页数：4

共 14 条

[1]

Characteristics of chromium doped spinel crystals for a fiber-optic thermometer application [J].

Aizawa, H ;

Ohishi, N ;

Ogawa, S ;

Watanabe, E ;

Katsumata, T ;

Komuro, S ;

Morikawa, T ;

Toba, E .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2002, 73 (08) :3089-3092

[2]

Energy structure and fluorescence of Eu2+ in ZnS:Eu nanoparticles [J].

Chen, W ;

Malm, JO ;

Zwiller, V ;

Huang, YN ;

Liu, SM ;

Wallenberg, R ;

Bovin, JO ;

Samuelson, L .

PHYSICAL REVIEW B, 2000, 61 (16) :11021-11024

[3]

Cullity BD, 1978, ELEMENTS XRAY DIFFRA

[4]

DAWSON WJ, 1988, AM CERAM SOC BULL, V67, P1673

[5]

Henderson B., OPTICAL SPECTROSCOPY

[6]

Hirano M, 2002, J AM CERAM SOC, V85, P1145, DOI 10.1111/j.1151-2916.2002.tb00236.x

[7]

Relationship between optical properties and crystallinity of nanometer Y2O3:Eu phosphor [J].

Igarashi, T ;

Ihara, M ;

Kusunoki, T ;

Ohno, K ;

Isobe, T ;

Senna, M .

APPLIED PHYSICS LETTERS, 2000, 76 (12) :1549-1551

[8]

Control of Y2O3:Eu spherical particle phosphor size, assembly properties, and performance for FED and HDTV [J].

Jing, X ;

Ireland, T ;

Gibbons, C ;

Barber, DJ ;

Silver, J ;

Vecht, A ;

Fern, G ;

Trowga, P ;

Morton, DC .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (12) :4654-4658

[9]

OPTICAL AND MICROWAVE SPECTRA OF CR3+ IN SPINEL ZNGA2O4 [J].

KAHAN, HM ;

MACFARLANE, RM .

JOURNAL OF CHEMICAL PHYSICS, 1971, 54 (12) :5197-+

[10]

Color variation of ZnGa2O4 phosphor by reduction-oxidation processes [J].

Kim, JS ;

Kang, HI ;

Kim, WN ;

Kim, JI ;

Choi, JC ;

Park, HL ;

Kim, GC ;

Kim, TW ;

Hwang, YH ;

Mho, SI ;

Jung, MC ;

Han, M .

APPLIED PHYSICS LETTERS, 2003, 82 (13) :2029-2031

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