Optical and structural properties of ZnGa2O4: Eu3+ nanophosphor by hydrothermal method

被引：26
作者：
Kim, Jong Su [1 ]
Kwon, Ae Kyung
Kim, Jin Su
Park, Hong Lee
Kim, Gwang Chul
do Han, Sang
机构：
[1] Pukyong Natl Univ, Div Image Informat Sci & Engn, Pusan 608739, South Korea
[2] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea
[3] Korea Univ Technol & Educ, Sch Liberal Arts, Cheonan 330708, South Korea
[4] Korea Inst Energy Res, Taejon 305343, South Korea
来源：
JOURNAL OF LUMINESCENCE | 2007年 / 122卷
关键词：
nanophosphor; hydrothermal method; ZnGa2O4 : Eu3+;
D O I：
10.1016/j.jlumin.2006.01.307
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Nanophosphor of ZnGa2O4:Eu3+ was synthesized through a hydrothermal method. The particle size was about 20 nm confirmed by X-ray diffractometry and scanning electron microscopy. Excitation peaks attributed to the charge transfer of Eu-O were redshifted to longer wavelength sides. Red emission peaks originating from D-5-F-7(j) (j = 0-6) transitions of Eu3+ were split into two sub-bands, indicating that two different Eu3+ ions exist at tetrahedral Zn2+ and octahedral Ga3+ sites. Relative intensities of two sub-bands were different from those of bulk phosphor. The color purity of ZnGa2O4:Eu3+ nanophosphor is enhanced in comparison with that of bulk phosphor. Optical characteristics of ZnGa2O4:Eu3+ nanophosphor can be explained by different site occupancy of Eu3+ from ZnGa2O4:Eu3+ bulk phosphor. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：851 / 854
页数：4
相关论文
共 12 条
[1]   Doped nanocrystalline materials - Physics and applications [J].
Bhargava, RN .
JOURNAL OF LUMINESCENCE, 1996, 70 :85-94
[2]   OPTICAL-PROPERTIES OF MANGANESE-DOPED NANOCRYSTALS OF ZNS [J].
BHARGAVA, RN ;
GALLAGHER, D ;
HONG, X ;
NURMIKKO, A .
PHYSICAL REVIEW LETTERS, 1994, 72 (03) :416-419
[3]  
Hirano M, 2002, J AM CERAM SOC, V85, P1145, DOI 10.1111/j.1151-2916.2002.tb00236.x
[4]   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
[5]   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
[6]   Correlation between the crystalline environment and optical property of Mn2+ ions in ZnGa2O4: Mn2+ phosphor -: art. no. 091912 [J].
Kim, JS ;
Kim, JS ;
Kim, TW ;
Kim, SM ;
Park, HL .
APPLIED PHYSICS LETTERS, 2005, 86 (09) :1-3
[7]   Optical and structural properties of nanosized ZnGa2O4:Cr3+ phosphor [J].
Kim, JS ;
Kim, JS ;
Park, HL .
SOLID STATE COMMUNICATIONS, 2004, 131 (12) :735-738
[8]   Energy transfer among three luminescent centers in full-color emitting ZnGa2O4:Mn2+, Cr3+ phosphors [J].
Kim, JS ;
Kim, JS ;
Kim, TW ;
Park, HL ;
Kim, YG ;
Chang, SK ;
Do Han, S .
SOLID STATE COMMUNICATIONS, 2004, 131 (08) :493-497
[9]   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
[10]   Luminescence enhancement of ZnGa2O4:Mn2+ by Ge4+ and Li+ doping [J].
Kim, JS ;
Park, HL ;
Kim, GC ;
Kim, TW ;
Hwang, YH ;
Kim, HK ;
Mho, SI ;
Han, SD .
SOLID STATE COMMUNICATIONS, 2003, 126 (09) :515-518
12