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고상법에 의한 BaSrSiO4 형광체의 분말합성 및 발광특성

Synthesis of BaSrSiO4 Phosphors by Solid State Reaction and Its Luminescent Properties

  • 강주영 (충남대학교 신소재공학과) ;
  • 원형일 (급속응고신소재연구소) ;
  • ;
  • 원창환 (충남대학교 신소재공학과)
  • Kang, Joo Young (Department of Materials Science and Engineering, Chungnam National University) ;
  • Won, Hyeong Il (Rapidly Solidified Materials Research Center(RASOM)) ;
  • Hayk, Nersisyan (Rapidly Solidified Materials Research Center(RASOM)) ;
  • Won, Chang Whan (Department of Materials Science and Engineering, Chungnam National University)
  • 투고 : 2013.10.06
  • 심사 : 2013.11.27
  • 발행 : 2013.12.27

초록

In this study, green barium strontium silicate phosphor ($BaSrSiO_4:Eu^{3+}$, $Eu^{2+}$) was synthesized using a solid-state reaction method in air and reducing atmosphere. Investigation of the firing temperature indicates that a single phase of $BaSrSiO_4$ is formed when the firing temperature is higher than $1400^{\circ}C$. The effect of firing temperature and doping concentration on luminescent properties are investigated. The light-emitting property was the best when the molar content of $Eu_2O_3$ was 0.025 mol. Also, the luminescent brightness of the $BaSrSiO_4$ fluorescent substance was the best when the particle size of the barium was $0.5{\mu}m$. $BaSrSiO_4$ phosphors exhibit the typical green luminescent properties of $Eu^{3+}$ and $Eu^{2+}$. The characteristics of the synthesized $BaSrSiO_4:Eu^{3+}$, $Eu^{2+}$ phosphor were investigated using X-ray diffraction (XRD) and scanning electron microscopy. The maximum emission band of the $BaSrSiO_4:Eu^{3+}$, $Eu^{2+}$ was 520 nm.

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참고문헌

  1. M. N. Kim and K. Y. Jung, Kor. Chem. Eng. Res., 49(5), 594 (2011). https://doi.org/10.9713/kcer.2011.49.5.594
  2. H. S. Kang, S. B. Park, H. Y. Koo and Y. C. Kang, Kor. Chem. Eng. Res., 44, 609 (2006).
  3. M. Iwaya, S. Terao, T. Sano, R. Nakamura, S. Kamiyama, H. Amano and I. Akasaki, J. Cryst. Growth, 237, 951 (2002).
  4. Y. Hu, W. Zhuang, H. Ye, D. Wang, S. Zhang and X. Huang, for White Light Emitting J.Alloys Compd., 390, 226 (2005).
  5. J. S. Kim, P. E. Jeon, J. C. Choi and H. L. Park, Solid State Commun., 133, 187 (2005). https://doi.org/10.1016/j.ssc.2004.10.017
  6. L. Jiang, C. Chang, D. Mao and C. Feng, Mater. Sci. Eng., B, 103, 271 (2003). https://doi.org/10.1016/S0921-5107(03)00261-7
  7. X. Zhang and X. Liu, J. Electrochem. Soc., 139, 622 (1992). https://doi.org/10.1149/1.2069268
  8. D. Ravichandran, R. Roy, W. B. White and S. Erdei, J. Mater. Res., 12(3), 819 (1997). https://doi.org/10.1557/JMR.1997.0119
  9. T. R. N. Kutty, R. Jagannathan and R. P. Rao, Mat. Res. Bull., 25, 1355 (1990). https://doi.org/10.1016/0025-5408(90)90217-P
  10. H. G. Kang and S. C. Choi, Ph. D. Thesis (in Korean) p. 76, Ajou university, Gyeonggi-do (2008).