TY - JOUR
T1 - Characterizations of Eu, Dy co-doped SrAl2O4 phosphors prepared by the solid-state reaction with B2O3 addition
AU - Chang, Yu Lun
AU - Hsiang, Hsing I.
AU - Liang, Ming Tsai
N1 - Funding Information:
The work was financially co-sponsored by the Ministry of Economic Affairs of the Republic of China through contract (92-EC-17-A-08-S1-023) and National Science Council of the Republic of China (NSC94-2216-E-006-026). The authors would like to thank Miss L.Z. Wang and Mr. M.Z. Lin of National Sun Yat-sen University for assistance in TEM photographs.
PY - 2008/8/11
Y1 - 2008/8/11
N2 - The SrAl2O4:Eu2+, Dy3+ phosphors were prepared by the solid-state reaction with B2O3 addition and characterized using XRD, DTA, TEM, SEM and PL. The results indicate that the borates flux, which consists of SrB2O4 and SrAl2B2O7, was suggested to facilitate the formation of SrAl2O4 and enhance the growth of SrAl2O4 crystallites. It also led to the agglomeration of resultant particles. Furthermore, the resultant samples with B2O3 addition can show superior emission intensities than the sample without B2O3. However, the samples with higher B2O3 content at 1300 °C showed weaker emission intensities than that with lower B2O3 content, which was due to the formation of second phase. As a result, the sample with 5 mol% B2O3 at 1300 °C had the highest emission intensity.
AB - The SrAl2O4:Eu2+, Dy3+ phosphors were prepared by the solid-state reaction with B2O3 addition and characterized using XRD, DTA, TEM, SEM and PL. The results indicate that the borates flux, which consists of SrB2O4 and SrAl2B2O7, was suggested to facilitate the formation of SrAl2O4 and enhance the growth of SrAl2O4 crystallites. It also led to the agglomeration of resultant particles. Furthermore, the resultant samples with B2O3 addition can show superior emission intensities than the sample without B2O3. However, the samples with higher B2O3 content at 1300 °C showed weaker emission intensities than that with lower B2O3 content, which was due to the formation of second phase. As a result, the sample with 5 mol% B2O3 at 1300 °C had the highest emission intensity.
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U2 - 10.1016/j.jallcom.2007.07.078
DO - 10.1016/j.jallcom.2007.07.078
M3 - Article
AN - SCOPUS:44649108888
SN - 0925-8388
VL - 461
SP - 598
EP - 603
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - 1-2
ER -