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Dy3+掺杂EuAl3(BO3)4晶体的荧光性质
引用本文:侯永生,陈池来,姚连增,蔡维理.Dy3+掺杂EuAl3(BO3)4晶体的荧光性质[J].化学物理学报,2007,20(1):99-102.
作者姓名:侯永生  陈池来  姚连增  蔡维理
作者单位:中国科学技术大学材料科学与工程系,合肥230026,中国科学技术大学材料科学与工程系,合肥230026,中国科学技术大学材料科学与工程系,合肥230026,中国科学技术大学材料科学与工程系,合肥230026
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
收稿时间:4/5/2006 12:00:00 AM

Luminescence Properties of Dy3+ Doped EuAl3(BO3)4 Crystals
Yong-sheng Hou,Chi-lai Chen,Lian-zeng Yao and Wei-li Cai.Luminescence Properties of Dy3+ Doped EuAl3(BO3)4 Crystals[J].Chinese Journal of Chemical Physics,2007,20(1):99-102.
Authors:Yong-sheng Hou  Chi-lai Chen  Lian-zeng Yao and Wei-li Cai
Institution:Department of Materials Science and Technology, University of Science and Technology of China, Hefei 230026, China,Department of Materials Science and Technology, University of Science and Technology of China, Hefei 230026, China,Department of Materials Science and Technology, University of Science and Technology of China, Hefei 230026, China,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.
Keywords:Luminescence  Dy3+  Eu3+  Sensitization
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