Synthesis of KSrPO4:Eu by polymerized complex method and its reduction process by microwave irradiation
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KSrPO4:Eu2+ was synthesized by polymerized complex microwave reduction method, which is a new method utilizing microwave reduction for precursor prepared by polymerized complex method. KSrPO4:Eu2+ without any other phase was successfully obtained by the new method. The grain size prepared by the new method was small and homogeneous in comparison with usual method utilizing solid state reaction. Blue emission band around 427 nm was observed under UV excitation around 320 ~ 350 nm. Eu concentration quenching was found to occur above 0.5%. Temperature dependence of photoluminescence showed good thermal stability. Phonon energy coupled with excited state was estimated to be 23 ~ 26 meV using configuration coordinate model.
Abstract
KSrPO4:Eu2+ was synthesized by polymerized complex microwave reduction method, which is a new method utilizing microwave reduction for precursor prepared by polymerized complex method. KSrPO4:Eu2+ without any other phase was successfully obtained by the new method. The grain size prepared by the new method was small and homogeneous in comparison with usual method utilizing solid state reaction. Blue emission band around 427 nm was observed under UV excitation around 320 ~ 350 nm. Eu concentration quenching was found to occur above 0.5%. Temperature dependence of photoluminescence showed good thermal stability. Phonon energy coupled with excited state was estimated to be 23 ~ 26 meV using configuration coordinate model.
참고문헌 (9)
- Y.-S. Tang, , A. Phys. Lett, 90(15), pp.151108~ (2007)
- C.-C. Lin, , J. The Electrochem. Soc, 155(9), pp.J248~J251 (2008)
- T. Ishigaki, , Mater. Sci. Eng. B, 173(1-3), pp.109~112 (2010)
- M. Arima, , J. Am. Ceram. Soc, 79(11), pp.2847~2856 (1996)
- Junho Jeong, "Photoluminescence Properties of KSrPO4: Eu, Mn and KSr(1-x-y)PO4: Eu, Mn Phosphors for UV-Based White LEDs", Journal of the Korean Physical Society, 54(6), pp.2390~2395 (2009), 한국물리학회
- C.-C. Lin, , J. Am. Ceram. Soc, 132(9), pp.3020~3028 (2010)
- R.-D. Shannon, , Acta Cryst. A, 32(5), pp.751~767 (1976)
- A. Kato, , J. Phy. Chem. Solids, 66, pp.2072~2075 (2005)
- P. Dorenbos, , J. Lumin, 104, pp.239~260 (2003)