Title of article
Color-tunable LaCaAl3O7:Ce3+,Tb3+ phosphors for UV light-emitting diodes
Author/Authors
Shi، نويسنده , , Yurong and Zhu، نويسنده , , Ge and Mikami، نويسنده , , Masayoshi and Shimomura، نويسنده , , Yasuo and Wang، نويسنده , , Yuhua، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
4
From page
114
To page
117
Abstract
Color tunable LaCaAl3O7:0.05Ce3+,yTb3+ (LCA:0.05Ce3+,yTb3+) phosphors were synthesized by solid state reaction. The luminescence spectra and the lifetime were investigated in detail. Results confirm that Tb3+ can substitute all La3+ sites without impure phase, and cause luminescence spectra shifting to longer wavelength. Besides, an efficient energy transfer with efficiency over 80% from Ce3+ to Tb3+ was found in the LCA host. Through this efficient energy transfer process, the hues of obtained phosphors changed from blue-white to green light. The results demonstrate its potential of applying in white light-emitting diodes.
Keywords
A. Optical materials , D. Luminescence , D. Optical properties
Journal title
Materials Research Bulletin
Serial Year
2013
Journal title
Materials Research Bulletin
Record number
2102994
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