Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Crystal Structure and Photoluminescence of Domestic Natural Alkaline Feldspar

국산 천연알카리 장석의 결정구조와 Photoluminescence

  • Choi, Jin-Ho (Department of Materials Science and Engineering, Hoseo University) ;
  • Cheon, Chae-Il (Department of Materials Science and Engineering, Hoseo University) ;
  • Kim, Jeong-Seog (Department of Digital Display, Hoseo University)
  • 최진호 (호서대학교 신소재공학과) ;
  • 천채일 (호서대학교 신소재공학과) ;
  • 김정석 (호서대학교 디스플레이공학부)
  • Published : 2007.05.31
Download PDF
⟨ Previous Next ⟩

Abstract

Blue light-emitting phosphors having the excitation spectrum range of the medium-long ultraviolet ($280nm{\sim}400nm$) have been prepared by solid state reaction method. As a starting material the natural alkaline feldspar powder produced from the domestic mine field in Buyeo, Chungnam-do. The photoluminescence characteristics and crystal structures have been analyzed for the phosphor samples. The powder mixture of the natural alkaline feldspar and the rare-earth oxide was calcined at $800{\sim}1000^{\circ}C\;for\;3{\sim}4h$ in air. The calcined samples we fully ground at room temperature and then heat-treated in the mild reducing gas atmosphere of $5%H_2-95%N_2$ mixture at $1100{\sim}1150^{\circ}C\;for\;3{\sim}4h$. The natural alkaline feldspar material consists of the monoclinic orthoclase ($KAlSi_3O_8$) and the triclinic albite ($NaAlSi_3O_8$) phases. At the $0.5wt%Eu_2O_3$ addition the PL spectrum showed the maximum intensity and with further increase of $Eu_2O_3$ the PL intensity decreased. The albite phase disappeared in the $Eu_2O_3$ doped phosphors. The effect of the co-doped activator on the PL characteristics have been also discussed.

Keywords

References

  1. Y. Lin, Z. Tang, Z. Zhang, and C.W. Nan, 'Luminescence of $Eu^{2+}$ and $Dy^{2+}$ Activated $R_3MgSi_2O_8$-based (R =Ca, Sr, Ba) Phosphors,' J. Alloy Comp., 348 76-9 (2003) https://doi.org/10.1016/S0925-8388(02)00796-X
  2. S. Shionoya and W. M. Yen, 'Phosphor Handbook,' Chapter 5. CRC press, 1998
  3. K. J. Choi, J. K. Park, K. N. Kim, C. H. Kim, and H. K. Kim, 'Luminescence Characteristics of $Sr_3MgSi_2O_8$:Eu Blue Phosphor for Light Emitting Diodes (in Korean),' J. Kor. Ceram. Soc., 41 [8] 573-77 (2004) https://doi.org/10.4191/KCERS.2004.41.8.573
  4. J. S. Kim, J. Z. Piao, J.-H. Choi, C.I. Cheon, and J. S. Park, 'Green Light-emitting Phosphor, $Ba_{2-x}CaMgSi_2O_8:Eu_x$,' J. Kor. Ceram. Soc., 42 [3] 145-49 (2005) https://doi.org/10.4191/KCERS.2005.42.3.145
  5. G. Blass and W. L. Wanmaker, 'Fluorescence of $Eu^{2+}$ Activated Silicates,' Philips Res. Repts., 23 189-220 (1968)
  6. R. Visocekas, N. A. Spooner, A. Zink, and P. Blanc, 'Tunnel Afterglow, Fading and Infrared Emission in Thermoluminescence of feldspars,' Radiation Measurements, 23 377-85 (1994) https://doi.org/10.1016/1350-4487(94)90067-1
  7. J. Gotze, D. Habermann, R. D. Neuser, and D. K. Richter, 'High-resolution Spectrometric Analysis of Rare Earth Elements- Activated Cathodoluminescence in Feldspar Minerals,' Chemical Geology, 153 81-91 (1999) https://doi.org/10.1016/S0009-2541(98)00153-3
  8. P. G. G. Slaats, G. J. Dirksen, and G. Blasse, 'Luminescence of Some Activators in Synthetic Potassium Feldspar Crystals,' Materials Chemistry and Physics, 30 19-23 (1991) https://doi.org/10.1016/0254-0584(91)90148-N
  9. A. Zink, R. Visocekas, and A. J. J. Bos, 'Comparison of Blue And Infrared Emission Bands in Thermoluminescence of Alkaline Feldspars,' Radiation Measurements, 24 513-18 (1995) https://doi.org/10.1016/1350-4487(95)00261-C
  10. R. B. Galloway, 'Comparison of the Green- and Infrared- Stimulated Luminescence of Feldspar,' Radiation Measurements, 23 617-20 (1994) https://doi.org/10.1016/1350-4487(94)90109-0
  11. M. Jain and A. K. Singhvi, 'Limits to Depletion of Blue- Green Light Stimulated Luminescence in Feldspars : Implications for Quartz Dating,' Radiation Measurements, 33 883-92 (2001) https://doi.org/10.1016/S1350-4487(01)00104-4
  12. I. Jaek, G. Hutt, and I. Vassiltchenko, 'Luminescence Study of Eu-and Cu-Doped Natural Alkali Feldspar and Quartz and Some Problems of Palaeodosimetry,' Radiation measurements, 27 473-77 (1997) https://doi.org/10.1016/S1350-4487(97)00014-0
  13. A. N. Winchel, 'Elements of Optical Mineralogy,' pp. 238- 45, John Wiley & Sons, 1968
  14. T. Matsuzawa, N.Takeuchi, Y. Acki, and T. Murayama, 'A long New Phosphorescence Phosphor with High Brightness $SrAl_2O_4:Eu^{3+},Dy^{3+}$ ,' J. Electrochem. Soc., 143 2670-76(1996) https://doi.org/10.1149/1.1837067
  15. P. Vergeer, V. Babin, and A. Meijerink, 'Quenching of $Pr^{3+}S_0$ emission by $Eu^{3+}$ and $Yb^{3+}$,' J. of Luminescence, 114 [3-4] 267-74 (2005) https://doi.org/10.1016/j.jlumin.2005.02.001
  16. M. W. Phillips, and P. H. Ribbe, 'The Structures of Monoclinic Potassium Rich Feldspars,' American Mineralogist 58 263-70 (1973)

Cited by

  1. Compounds vol.99, pp.7, 2016, https://doi.org/10.1111/jace.14330