Effect of BaF2 flux on the photoluminescence properties of Y2.94Al5O12 : 0.06Ce3+ phosphors for white LED applications
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We prepared Y2.94Al5O12 : 0.06Ce3+ phosphors by sol-gel method using BaF2 flux (0-8 wt%). The effect of BaF2 flux content onthe crystal structure, morphology, and photoluminescence properties of the Y2.94Al5O12 : 0.06Ce3+ phosphors was investigated. XRD patterns revealed that all the prepared phosphors had the cubic crystal structure. The emission spectra had a broad emissionband covering 460-750 nm, with a maximum emission intensity at 553 nm. The added BaF2 flux significantly improved thephotoluminescence properties. The emission intensity peaking at 553 nm of 6 wt% BaF2-containing Y2.94Al5O12 : 0.06Ce3+phosphors was above twice higher than that of BaF2-free Y2.94Al5O12 : 0.06Ce3+ phosphors. This result indicates that the BaF2 usedas a flux was highly effective for improving the photoluminescence properties.
Abstract
We prepared Y2.94Al5O12 : 0.06Ce3+ phosphors by sol-gel method using BaF2 flux (0-8 wt%). The effect of BaF2 flux content onthe crystal structure, morphology, and photoluminescence properties of the Y2.94Al5O12 : 0.06Ce3+ phosphors was investigated. XRD patterns revealed that all the prepared phosphors had the cubic crystal structure. The emission spectra had a broad emissionband covering 460-750 nm, with a maximum emission intensity at 553 nm. The added BaF2 flux significantly improved thephotoluminescence properties. The emission intensity peaking at 553 nm of 6 wt% BaF2-containing Y2.94Al5O12 : 0.06Ce3+phosphors was above twice higher than that of BaF2-free Y2.94Al5O12 : 0.06Ce3+ phosphors. This result indicates that the BaF2 usedas a flux was highly effective for improving the photoluminescence properties.
참고문헌 (19)
- H. S. Jang, , J. Lumin, 126, pp.371~377 (2007)
- L. Zhang, , J. Rare Earths, 30, pp.289~296 (2012)
- S. Xu, , J. Rare Earths, 27, pp.327~329 (2009)
- S. J. Yoon, , Ceram. Int, 40, pp.4345~4350 (2014)
- A. Hakeem, , J. Nanosci. Nanotechnol, 14, pp.5873~5876 (2014)
- S. J. Yoon, , Inter. J. Hydro. Ener, 40, pp.825~832 (2015)
- K. Y. Kim, , J. Lumin, 160, pp.78~84 (2015)
- J. D. Furman, , Chem. Phys. Lett, 465, pp.67~72 (2008)
- P. Rai, , Ceram. Int, 38, pp.235~242 (2012)
- X. Li, , Powder Technol, 196, pp.26~29 (2009)
- A. Boukerika, , J. Alloys Compd, 614, pp.383~388 (2014)
- S. J. Yoon, , Opt. Mater, 36, pp.1305~1310 (2014)
- V. Sivakumar, , J. Lumin, 145, pp.420~424 (2014)
- H. J. Lee, , J. Lumin, 130, pp.941~946 (2010)
- R. Praveena, , J. Alloys Compd, 509, pp.859~863 (2011)
- H. T. Kim, , Mater. Res. Bull, 47, pp.1428~1431 (2012)
- W. Q. Chen, , J. Lumin, 147, pp.304~309 (2014)
- A. Boukerika, , Opt. Mater, 40, pp.14~19 (2015)
- S. R. Naik, , J. Lumin, 161, pp.335~342 (2015)