Synthesis and properties of solution-processed Eu3+:BaY2F8

被引：25
作者：
Karbowiak, M
Mech, A
Bednarkiewicz, A
Strek, W
机构：
[1] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland
[2] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
来源：
JOURNAL OF LUMINESCENCE | 2005年 / 114卷 / 01期
关键词：
luminescent properties; Judd-Ofelt theory;
D O I：
10.1016/j.jlumin.2004.11.004
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The structural and optical properties of solution-processed Eu3+:BaY2F8 were characterized and compared to those of the sample synthesized by a solid-state reaction method. Precipitated from solution Eu3+:BaY2F8 has the fluorite (CaF2) type of structure, which transforms completely into monoclinic form when powder is heated at 750 degrees C. This temperature is also sufficient for entire elimination of hydroxyl groups. The intensities of f-f emission transitions of EU3+ in BaY2F8 were analyzed in the frame of Judd-Ofelt model and the values of 1.23 x 10(-20) and 1.95 x 10(-20) cm(2) were determined for Omega(2) and Omega(4) intensity parameters. The experimental lifetimes of the D-5(0) and D-5(1) levels are equal to 8.4 and 2.3 ms, respectively. The quantum efficiency of Eu3+ in BaY2F8 was evaluated to be similar to 35%. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：1 / 8
页数：8
相关论文
共 24 条
[1]  
Antipenko B. M., 1987, Soviet Physics - Technical Physics, V32, P208
[2]   DIODE AND DYE PUMPED CW LASER IN BAY2F8-ER3+ AT 2.7 MU-M [J].
AUZEL, F ;
KAMINSKII, A ;
MEICHENIN, D .
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1992, 131 (01) :K63-K67
[3]  
BEDNARKIEWICZ A, IN PRESS J LUMIN
[4]   ROOM-TEMPERATURE GREEN LASER-EMISSION OF ER-LIYF4 [J].
BREDE, R ;
DANGER, T ;
HEUMANN, E ;
HUBER, G ;
CHAI, B .
APPLIED PHYSICS LETTERS, 1993, 63 (06) :729-730
[5]   Growing of bulk crystals and structuring waveguides of fluoride materials for laser applications [J].
Burkhalter, R ;
Dohnke, I ;
Hulliger, J .
PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS, 2001, 42 (1-2) :1-64
[6]  
Carnall W. T., 1977, ENERGY STRUCTURE TRA
[7]   Spectroscopic properties and design of highly luminescent lanthanide coordination complexes [J].
de Sá, GF ;
Malta, OL ;
Donegá, CD ;
Simas, AM ;
Longo, RL ;
Santa-Cruz, PA ;
da Silva, EF .
COORDINATION CHEMISTRY REVIEWS, 2000, 196 :165-195
[8]   Optical materials for short wavelength generation [J].
Egger, P ;
Hulliger, J .
COORDINATION CHEMISTRY REVIEWS, 1999, 183 :101-115
[9]   INVESTIGATION OF CHARGE-TRANSFER O2--]LN3+ AND F--]LN3+ IN LAF3(LN3+, O2-) AND YF3(LN3+, O2-) SYSTEMS [J].
GERARD, I ;
KRUPA, JC ;
SIMONI, E ;
MARTIN, P .
JOURNAL OF ALLOYS AND COMPOUNDS, 1994, 207 :120-127
[10]  
GILBERT LH, 1993, MAT RES B, V28, P923
123