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2019 Vol.29, Issue 2 Preview Page
Optical Properties of Y3Al5O12;Ce3+,Pr3+ Transparent Ceramic Phosphor for High Power White Lighting

고출력 백색 광원용 Y3Al5O12;Ce3+,Pr3+ 투명 세라믹 형광체의 광학특성

Taewook Kang2
,
Seokgyu Lim1
,
Jongsu Kim12
,
Yongseok Jeong1†
강 태욱2
,
임 석규1
,
김 종수12
,
정 용석1†
1Dept. of Display Science and Engineering, Pukyong National University, Busan 48513, Republic of Korea
2Interdisciplinary Program of LED and Solid State Light Engineering, Pukyong National University, Busan 48513, Republic of Korea
1부경대학교 융합디스플레이공학과
2부경대학교 LED 공학협동과정
†Corresponding author E-Mail : jeongys@pknu.ac.kr (Y. S. Jeong, Pukyong Nat’l Univ.)
February 2019. pp. 116-120
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Abstract

We prepared Y3Al5O12;Ce3+,Pr3+ transparent ceramic phosphor using a solid state reaction method. By XRD pattern analysis and SEM measurement, our phosphors reveal an Ia-3d(230) space group of cubic structure, and the transparent ceramic phosphor has a polycrystal state with some internal cracks and pores. In the Raman scattering measurement with an increasing temperature, lattice vibrations of the transparent ceramic phosphor decrease due to its more perfect crystal structure and symmetry. Thus, low phonon generation is possible at high temperature. Optical properties of the transparent ceramic phosphor have broader excitation spectra due to a large internal reflection. There is a wide emission band from the green to yellow region, and the red color emission between 610 nm and 640 nm is also observed. The red-yellow phosphor optical characteristics enable a high Color Rendering Index (CRI) in combination with blue emitting LED or LD. Due to its good thermal properties of low phonon generation at high temperature and a wide emission range for high CRI characteristics, the transparent ceramic phosphor is shown to be a good candidate for high power solid state white lighting.

Keywords
Y3Al5O12;Ce3+Pr3+ phosphor
transparent ceramic
high CRI
References
1.
S. Nakamura, T. Mukai and M. Senoh, Appl. Phys. Lett., 64, 1687 (1994).10.1063/1.111832
2.
R. N. Hall, G. E. Fenner, J. D. Kingsley, T. J. Solty s andR. O. Carlson, Phys. Rev. Lett., 9, 366 (1962).10.1103/PhysRevLett.9.366
3.
Z. I. Alferov, V. M. Andreev, D. Z. Garbuzov, Y. V. Zhilyaev, E. P. Morozov, E. L. Portnoi and V. G. Trofim, Sov. Phys. Semicond, 4, 1573 (1971).
4.
I. Hayashi, M. B. Panish, P. W. Foy and S. Sumuski, Appl. Phys. Lett., 17, 109 (1970).10.1063/1.1653326
5.
J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone an dY. Park, Jpn. J. Appl. Phys., 44, L649 (2005).10.1143/JJAP.44.L649
6.
H. S. Jang, W. B. Im, D. C. Lee, D. Y. Jeon and S. S. Kim, J. Lumin., 126, 371 (2007).10.1016/j.jlumin.2006.08.093
7.
M. Sekita, H. Haneda and S. Shirasaki, J. Appl. Phys., 69, 3709 (1998).10.1063/1.348959
8.
K. Papagelis, G. Kanelis, S. Ves and G. A. Kourouklis, Phys. Status Solidi B, 233, 134 (2002).10.1002/1521-3951(200209)233:1<134::AID-PSSB134>3.0.CO;2-Z
9.
G. F. Herrmann, J. J. Pearson, K. A. Wickersheim and R. A. Buchanan, J. Appl. Phys., 37, 1312 (1966).10.1063/1.1708447
10.
L. T. Su, A.I. Tok, Y. Zhao, N. Ng and F. Y. Boey, J. Phys. Chem., 113, 5974 (2009).
11.
G. Blasse, B. C. Grabmaier, Luminescent Materials, p. 25, Springer, Berlin, Germany, (1994).10.1007/978-3-642-79017-1
12.
R. L. Aggarwal, D. J. Ripin, J. R. Ochoa and T. Y. Fan, J. Appl. Phys., 98, 103514 (2005).10.1063/1.2128696
Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 29
  • No :2
  • Pages :116-120
  • Received Date : 2018-11-07
  • Revised Date : 2019-01-04
  • Accepted Date : 2019-01-06
  • DOI :https://doi.org/10.3740/MRSK.2019.29.2.116
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