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Luminescence Properties of Dy3+ Doped EuAl3(BO3)4 Crystals
Yong-sheng Hou ,Chi-lai Chen ,Lian-zeng Yao* ,Wei-li Cai
Author NameAffiliation
Yong-sheng Hou Department of Materials Science and Technology, University of Science and Technology of China, Hefei 230026, China 
Chi-lai Chen Department of Materials Science and Technology, University of Science and Technology of China, Hefei 230026, China 
Lian-zeng Yao* Department of Materials Science and Technology, University of Science and Technology of China, Hefei 230026, China 
Wei-li Cai Department of Materials Science and Technology, University of Science and Technology of China, Hefei 230026, China 
Abstract:
EuAl3(BO3)4 and Dy3+:EuAl3(BO3)4 crystals were synthesized and their luminescence properties were studied. The EuAl3(BO3)4 crystals have strong red emission. In the Dy3+ doped EuAl3(BO3)4 crystals, the Dy3+ strongly sensitized the luminescence of the Eu3+. A resonance mechanism of the energy transfer was suggested. The optimum Dy3+ concentration of the sensitization effect was 0.2. When the Dy3+ concentration was higher than 0.2, the quick drop of the Eu3+ 613 nm emission for DyxEu1-xAl3(BO3)4 was attributed to the Dy3+ concentration quenching effect.
Key words:  Luminescence, Dy3+, Eu3+, Sensitization
FundProject:
Dy3+掺杂EuAl3(BO3)4晶体的荧光性质
侯永生,陈池来,姚连增*,蔡维理
摘要:
制备了EuAl3(BO3)4晶体和Dy3+:EuAl3(BO3)4晶体,并且研究了它们的荧光性质.EuAl3(BO3)4晶体具有强的红光发射.在Dy3+掺杂的EuAl3(BO3)4晶体中,Dy3+对Eu3+的荧光有很强的敏化作用,提出了敏化作用的机制是能量的共振传递.Dy3+敏化作用的最佳掺杂浓度为0.2,高于0.2时,由于Dy3+的浓度焠灭效应,DyxEu1-xAl3(BO3)4晶体中Eu3+的613 nm发射峰强度急剧下降.
关键词:  荧光,Dy3+,Eu3+,敏化作用
DOI:10.1360/cjcp2007.20(1).99.4
分类号: