Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
권호 표지
DOI QR코드

DOI QR Code

Optical properties of (CexLu1-x)3MgAl3SiO12 yellow phosphor

(CexLu1-x)3MgAl3SiO12 황색 형광체의 광학적 특성

  • Lee, Jung-Il (Department of Materials Science and Engineering, Korea National University of Transportation) ;
  • Kim, Tae Wan (Department of Materials Science and Engineering, Korea National University of Transportation) ;
  • Oh, Ho Ra (Department of Materials Science and Engineering, Korea National University of Transportation) ;
  • Hong, Chang Woo (Department of Civil Engineering, Korea National University of Transportation) ;
  • Ryu, Jeong Ho (Department of Materials Science and Engineering, Korea National University of Transportation)
  • 이정일 (한국교통대학교 신소재공학과) ;
  • 김태완 (한국교통대학교 신소재공학과) ;
  • 오호라 (한국교통대학교 신소재공학과) ;
  • 홍창우 (한국교통대학교 토목공학과) ;
  • 류정호 (한국교통대학교 신소재공학과)
  • Received : 2016.01.25
  • Accepted : 2016.01.29
  • Published : 2016.02.29
Download PDF
⟨ Previous Next ⟩

Abstract

A novel $Ce^{3+}$ doped $(Ce_xLu_{1-x})_3MgAl_3SiO_{12}$ phosphor was successfully synthesized by a conventional solid-state reaction. Heat-treatment temperature was controlled from 1250 to $1550^{\circ}C$ for 5 h. XRD and PL properties were analyzed for the optimum heat-treatment condition. Ce doping concentration was varied from 2.0 to 10.0 mol% for the optimum Ce doping concentration. The PL intensity, peak wavelength and FWHM were calculated with the Ce doping concentration, and evaluated for the application to LED packaging. Particle size and morphology were also characterized for synthesized phosphor sample at optimum heat-temperature and Ce doping concentration.

$Ce^{3+}$ 이온을 도핑한 $(Ce_xLu_{1-x})_3MgAl_3SiO_{12}$ 형광체 샘플을 고상합성법으로 합성하였다. 열처리 온도를 1250부터 $1550^{\circ}C$ 온도영역에서 조절하면서 5 h 동안 소성하였으며, 소성된 샘플들의 XRD와 PL 특성을 조사하여 가장 최적의 열처리 온도를 구하고자 하였다. 또한 $Ce^{3+}$ 이온의 도핑농도를 2.0에서 10.0 mol%로 변화시키면서 $Ce^{3+}$ 이온의 도핑농도와 광학적 특성과의 관계를 고찰하였다. $Ce^{3+}$ 이온의 도핑농도에 따른 형광체들의 PL 강도, 피크위치, 반치폭을 계산하여 실제적인 LED 패키징에 가장 적절한 Ce 도핑 농도를 구하고자 하였다. 또한 최적의 소성온도와 Ce 도핑농도 조건에서 합성한 형광체 샘플의 입도와 입형을 분석하였다.

Keywords

References

  1. S.M. Hwang, J.B. Lee, S.H. Kim and J.H. Ryu, "A review on inorganic phosphor materials for white LEDs", J. Korean Cryst. Growth Cryst. Technol. 22 (2012) 233. https://doi.org/10.6111/JKCGCT.2012.22.5.233
  2. C.C. Lin, Y.S. Zheng, H.Y. Chen, C.H. Ruan, G.W. Xiao and R.S. Liu, "Improving optical properties of white LED fabricated by a blue LED chip with yellow/red phosphors", J. Electrochem. Soc. 157 (2010) H900. https://doi.org/10.1149/1.3465654
  3. A.A. Setlur, W.J. Heward, Y. Gao, A.M. Srivastava, R.G. Chandran and M.V. Shankar, "Crystal chemistry and luminescence of $Ce^{3+}$-doped $Lu_2CaMg_2(Si,Ge)_3O_{12}$ and its use in LED based lighting", Mater. Chem. 18 (2006) 3314. https://doi.org/10.1021/cm060898c
  4. R. Mueller-Mach, G. Mueller, M.R. Krames, H.A. Hoppe, F. Stadler, W. Schnick, T. Juestel and P. Schmidt, "Highly efficient all-nitride phosphorconverted white light emitting diode", Phys. Stat. Sol. (a) 202 (2005) 1727. https://doi.org/10.1002/pssa.200520045
  5. J. Zhou, Y. Teng, X. Liu, S. Ye, Z. Ma and J. Qiu, "Broadband spectral modification from visible light to near-infrared radiation using $Ce^{3+}$-$Er^{3+}$ codoped yttrium aluminium garnet", Phys. Chem. Chem. Phys. 12 (2010) 13759. https://doi.org/10.1039/c0cp00204f
  6. B. Lee, S. Lee, H.G. Jeong and K.-S. Sohn, "Solid-state combinatorial screening of $(Sr,Ca,Ba,Mg)_2Si_5N_8$ : $Eu^{2+}$ phosphors", ACS Comb. Sci. 13 (2011) 154. https://doi.org/10.1021/co100046u
  7. W. Zhou, X. Ma, M. Zhang, Y. Luo and Z. Xia, "Synthesis and photoluminescence properties of green-emitting $Lu_3(Al,Sc)_5O_{12}$ : $Ce^{3+}$ phosphor", Ceram. Int. 41 (2015) 7140. https://doi.org/10.1016/j.ceramint.2015.02.030
  8. M.T. Caldes, P. Deniard, X.D. Zou, R. Marchand, N. Diot and R. Brec, "Solving modulated structures by Xray and electron crystallography", Micron 32 (2001) 497. https://doi.org/10.1016/S0968-4328(00)00058-5
  9. F. Euler and J.A. Bruce, "Oxygen coordinates of compounds with garnet structure", Acta Cryst. 19 (1965) 971. https://doi.org/10.1107/S0365110X65004747
  10. M. Shang, J. Fan, H. Lian, Y. Zhang, D. Geng and J. Lin, "A double substitution of $Mg^{2+}-Si^{4+}/Ge^{4+}$ for $Al_{(1)}^{3+}-Al_{(2)}^{3+}$ in $Ce^{3+}$-doped garnet phosphor for white LEDs", Inorg. Chem. 53 (2014) 7748. https://doi.org/10.1021/ic501063j
  11. Y. Shi, G. Zhu, M. Mikami, Y. Shimomura and Y. Wang, "A novel $Ce^{3+}$ activated $Lu_3MgAl_3SiO_{12}$ garnt phosphor for blue chip light-emitting diodes with excellent performance", Dalton Trans. 44 (2015) 1775. https://doi.org/10.1039/C4DT03144J
  12. A. Katelnikovas, H. Bettentrup, D. Uhlich, S. Sakirzanovas, T. Justel and A. Kareiva, "Synthesis and optical properties of $Ce^{3+}$-doped $Y_3Mg_2AlSi_2O_{12}$ phosphors", J. Lumin. 129 (2009) 1356. https://doi.org/10.1016/j.jlumin.2009.07.006
  13. C.C. Lin and R-S. Liu, "Advances in phosphors for light-emitting diodes", J. Phys. Chem. Lett. 2 (2011) 1268. https://doi.org/10.1021/jz2002452
  14. J.-I. Lee, T.W. Kim, J.Y. Shin and J.H. Ryu, "Synthesis of $Lu_{2.94}Ce_{0.06}MgAl_3SiO_{12}$ phosphor and its photoluminescent properties", J. Korean Cryst. Growth Cryst. Technol. 25 (2015) 121. https://doi.org/10.6111/JKCGCT.2015.25.3.121
  15. J.L. Wu, G. Gundiah and A.K. Cheetham, "Structureproperty correlations in Ce-doped garnet phosphors for use in solid state lighting", Chem. Phys. Lett. 441 (2007) 250. https://doi.org/10.1016/j.cplett.2007.05.023
  16. J.H. Ryu, Y.-G. Park, H.S. Won, S.H. Kim, H. Suzuki, J.M. Lee, C. Yoon, M. Nazarov, D.Y. Noh and B. Tsukerblat, "Luminescent properties of Ca-${\alpha}$-SiAlON : $Eu^{2+}$ phosphors synthesized by gas-pressured sintering", J. Electrochem. Soc. 155 (2008) J99. https://doi.org/10.1149/1.2834453
  17. Y.-F. Wu, Y-H. Chan, Y.-T. Nien and I.-G. Chen, "Crystal structure and optical performance of $Al^{3+}$ and $Ce^{3+}$ codoped $Ca_3Sc_2Si_3O_{12}$ green phosphors for white LEDs", J. Am. Ceram. Soc. 96 (2013) 234. https://doi.org/10.1111/jace.12034
  18. V. Bachmann, C. Ronda and A. Meijerink, "Temperature quenching of yellow $Ce^{3+}$ luminescence in YAG : Ce", Chem. Mater. 21 (2009) 2077. https://doi.org/10.1021/cm8030768