New Physics: Sae Mulli,
Vol. 65, No. 9, September 2015, pp. 868∼872
DOI: 10.3938/NPSM.65.868
Formation and Photoluminescence of BaO2 -TiO2 -Strontium nitrate:Eu3+
Powders Fabricated by Using Mechanical Alloying
Hyun-Goo Kim∗
Department of Physics Education, Chosun University, Gwangju 61452, Korea
(Received 18 June 2015 : revised 22 July 2015 : accepted 28 July 2015)
BaO2 -TiO2 -Strontium nitrate:Eu3+ powders were synthesized by using the planetary ball mill
(PBM) method, and their structural and photoluminescent characteristics were investigated by
using X-ray diffractometry (XRD), thermogravimetric/differential thermal analyses (TG/DTA),
and an Ocean Optics USB2000 spectrometer. The crystallite size of the resultant powder milled
for 600 minutes (min) by using the Willaimson-Hall method, was approximately 74.1 nm with a
strain of 6.01 × 10−3 . The maximum dissolution temperature, the transition temperature, and the
total percent weight reduction of the sample powders were 604.1 ◦ C, about 525.7 ◦ C, and 29.22%,
respectively. Furthermore, the photoluminescence peaks of the powder mixtures were detected
near 578 nm, 591 nm, 615.5 nm, and 666 nm, respectively. The highest luminescence intensity of
the powder mixture was observed for the samples with Eu = 10 mole%. Peaks of Sr2 TiO4 and
(Ba1.5 Sr0.5 )TiO4 were observed in samples annealed at a temperature of 800 ◦ C for 1 h.
PACS numbers: 81.20.Ev
Keywords: Planetary ball mill, BaO2 -TiO2 -Strontium nitrate:Eu3+ , Williamson-Hall method, Scherrer
method
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This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License
(http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in
any medium, provided the original work is properly cited.
Formation and Photoluminescence of BaO2 -TiO2 -Strontium nitrate:Eu3+ Powders Fabricated by · · · – Hyun-Goo Kim
869
PACS numbers: 81.20.Ev
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New Physics: Sae Mulli, Vol. 65, No. 9, September 2015
Fig. 1. (Color online) XRD patterns of Eu-doped BaO2 TiO2 -Strontium nitrate powders by Planetary Ball Mill.
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[3] C. Kursun and M. Gogebakan, J. Alloys Compd.
619, 138 (2015).
[4] C. C. Koch, O. B. Cavin, C. G. McKamey and J. O.
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Bettinelli, Opt. Mater. 28, 1284 (2006).
[7] C. B. Samantaray, M. L. Nanda Goswami, D. Bhat-
ACKNOWLEDGEMENTS
tacharya, S. K. Ray and H. N. Acharya, Matter.
Lett. 58, 2299 (2004).
This study was supported by research fund from
Chosun University, 2015.
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22 (1953).
[9] M. E. Rabanal, A. Vorez, B. Levenfeld and J.
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