Luminescence studies on Al4B2O9:Eu2+ phosphor crystals

被引：22
作者：
Zheng, Yingli
Chen, Donghua [1 ]
机构：
[1] S Cent Univ Nationalities, Key Lab Catalysis & Mat Sci, State Ethn Affairs Commiss, Coll Chem & Mat Sci, Wuhan 430074, Hubei, Peoples R China
来源：
LUMINESCENCE | 2011年 / 26卷 / 06期
关键词：
aluminum borate; X-ray diffraction; blue-emitting phosphor; nanoparticles; luminescence; EU2+ LUMINESCENCE; CA PHOSPHORS; COLOR; SR; BA;
D O I：
10.1002/bio.1256
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A novel blue-emitting phosphor, Eu2+-doping Al4B2O9, was prepared via a modified solid-state reaction. Al4B2O9:Eu2+ nanoparticles with diameters varying in a range from 20 to 50 nm were obtained using urea as an auxiliary reagent at the optimum temperature of 850 degrees C. The crystallization and particle sizes of Al4B2O9:Eu2+ were investigated using powder X-ray diffraction (XRD) and transmission electron microscopy (TEM). Photoluminescence (PL) results showed that Al4B2O9:Eu2+ phosphor could be efficiently excited by the ultraviolet region from 240 to 410 nm, exhibiting bright blue emission. Further investigation on concentration-dependent emission spectra indicated that the Al3.997B2O9:Eu-0.003(2+) phosphor exhibited the strongest luminescent, and the relative PL intensity decreased with increasing Eu2+ concentration due to concentration quenching. In addition, the concentration quenching for the one-Eu-site emission centers was caused by the electric multipolemultipole interaction. Copyright (C) 2010 John Wiley & Sons, Ltd.
引用
收藏
页码：481 / 485
页数：5
相关论文
共 27 条
[1]   STRUCTURE AND EU2+ LUMINESCENCE OF DIBARIUM MAGNESIUM ORTHOBORATE [J].
AKELLA, A ;
KESZLER, DA .
MATERIALS RESEARCH BULLETIN, 1995, 30 (01) :105-111
[2]   LUMINESCENCE OF INORGANIC SOLIDS - FROM ISOLATED CENTERS TO CONCENTRATED SYSTEMS [J].
BLASSE, G .
PROGRESS IN SOLID STATE CHEMISTRY, 1988, 18 (02) :79-171
[3]  
BLASSE G, 1968, PHILIPS RES REP, V23, P189
[4]  
BLASSE G, 1969, PHILIPS RES REP, V24, P131
[5]  
Blasse G., 1994, LUMINESCENT MAT, P1, DOI [10.1007/978-3-642-79017-1_1, DOI 10.1007/978-3-642-79017-1_1, 10.1007/978-3-642-79017-11, DOI 10.1007/978-3-642-79017-11]
[6]   Development of nanophosphors - A review [J].
Chander, H .
MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2005, 49 (05) :113-155
[7]  
CULLITY BD, 1978, ELEMENTS XRAY DIFFRA
[8]   A THEORY OF SENSITIZED LUMINESCENCE IN SOLIDS [J].
DEXTER, DL .
JOURNAL OF CHEMICAL PHYSICS, 1953, 21 (05) :836-850
[9]   Eu2+ luminescence in the borates X(2)Z(BO3)(2) (X = Ba, Sr; Z = Mg, Ca) [J].
Diaz, A ;
Keszler, DA .
CHEMISTRY OF MATERIALS, 1997, 9 (10) :2071-2077
[10]   Crystal structure of synthetic Al4B2O9:: A member of the mullite family closely related to boralsilite [J].
Fischer, Reinhard X. ;
Kahlenberg, Volker ;
Voll, Dietmar ;
MacKenzie, Kenneth J. D. ;
Smith, Mark E. ;
Schnetger, Bernhard ;
Brumsack, Hans-Juergen ;
Schneider, Hartmut .
AMERICAN MINERALOGIST, 2008, 93 (5-6) :918-927
123