Main > Chinese Optics Letters >  Volume 13 >  Issue 9 >  Page 091601 > Article
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Accepted: Jun. 8, 2015

Posted: Jan. 23, 2019

Published Online: Sep. 14, 2018

The Author Email: Yuepin Zhang (zhangyuepin@nbu.edu.cn)

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Shaoye Ouyang, Weihuan Zhang, Zhixiong Zhang, Yuepin Zhang, Haiping Xia. Near-white light-emitting Dy3+-doped transparent glass ceramics containing Ba2LaF7 nanocrystals[J]. Chinese Optics Letters, 2015, 13(9): 091601

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## Abstract

Glass ceramics $Ba2LaF7:xDy3+$ are obtained through the conventional melt-quenching technique, and their luminescent properties are investigated. Under 350 nm excitation, the emission spectra consists of a strong blue-yellow band as well as a weak red emission centered at 660 nm, which are attributed to the $F9/24→H15/26$, $F9/24→H13/26$ and $F9/24→H11/26$ transitions of the $Dy3+$ ion, respectively. The corresponding Commission Internationale de L’Eclairage (CIE) chromaticity coordinate for a sample of 2 mol.% $Dy2O3$ after being heat-treated at 690°C is (0.313, 0.328). It is concluded that the formed materials may have the possibility of applications for white light-emitting diodes (LEDs).