TY - JOUR
T1 - Microstructure and photoluminescent properties of BaY2ZnO 5:Tb3+ phosphors with addition of lithium carbonate
AU - Chen, Huang Yu
AU - Yang, Ru Yuan
AU - Chang, Shoou Jinn
N1 - Funding Information:
The authors would like to acknowledge funding support from the Nation Science Council of Taiwan under Grant NSC 101-2622-E-020-001-CC2 , and would also like to acknowledge National Nano Device Laboratories and the Precision Instrument Center of National Pingtung University of Science and Technology for supporting the experimental equipment.
PY - 2013/4/1
Y1 - 2013/4/1
N2 - In this paper, Tb3+ activated BaY2ZnO5 phosphors with addition of lithium carbonates (0, 0.0125, 0.025, 0.05, 0.1, and 0.2 molar ratio) were synthesized using the solid-state reaction, and the morphology and photoluminescent properties are investigated. When BaY 2ZnO5:Tb3+ phosphors to which lithium carbonates were added were sintered at 1250 °C for 12 h, X-ray powder diffraction analysis showed that the un-reacted Y2O3 raw material decreased and scanning electron microscopy showed that the grain growth is improved. From PL studies, the photoluminescent properties were decreased when Li+ ion was added, which might be resulted from the increase of the oxygen vacancy in BaY2ZnO5:Tb3+ phosphors. The green emission of the BaY2ZnO5:Tb3+, Li+ phosphors showed the CIE chromaticity coordinates in the range of x = 0.3361-0.3510 and y = 0.5202-0.5492.
AB - In this paper, Tb3+ activated BaY2ZnO5 phosphors with addition of lithium carbonates (0, 0.0125, 0.025, 0.05, 0.1, and 0.2 molar ratio) were synthesized using the solid-state reaction, and the morphology and photoluminescent properties are investigated. When BaY 2ZnO5:Tb3+ phosphors to which lithium carbonates were added were sintered at 1250 °C for 12 h, X-ray powder diffraction analysis showed that the un-reacted Y2O3 raw material decreased and scanning electron microscopy showed that the grain growth is improved. From PL studies, the photoluminescent properties were decreased when Li+ ion was added, which might be resulted from the increase of the oxygen vacancy in BaY2ZnO5:Tb3+ phosphors. The green emission of the BaY2ZnO5:Tb3+, Li+ phosphors showed the CIE chromaticity coordinates in the range of x = 0.3361-0.3510 and y = 0.5202-0.5492.
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U2 - 10.1016/j.mseb.2013.01.013
DO - 10.1016/j.mseb.2013.01.013
M3 - Article
AN - SCOPUS:84873577978
SN - 0921-5107
VL - 178
SP - 375
EP - 379
JO - Materials Science and Engineering: B
JF - Materials Science and Engineering: B
IS - 6
ER -