Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
권호 표지
DOI QR코드

DOI QR Code

Optical Properties as Coating Process of Complex Phosphor for White LED

백색 LED용 복합형광체의 코팅공정에 따른 광 특성

  • Lee, Hyo-Sung (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team) ;
  • Kim, Byung-Ho (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team) ;
  • Hwang, Jong Hee (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team) ;
  • Lim, Tae-Young (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team) ;
  • Kim, Jin-Ho (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team) ;
  • Jeon, Dae-Woo (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team) ;
  • Jung, Hyun-Suk (Department of Materials science and Engineering, Sungkyunkwan University) ;
  • Lee, Mi Jai (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team)
  • 이효성 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 김병호 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 황종희 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 임태영 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 김진호 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 전대우 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 정현석 (성균관대학교 신소재공학과) ;
  • 이미재 (한국세라믹기술원 광.디스플레이소재팀)
  • Received : 2015.09.25
  • Accepted : 2015.12.16
  • Published : 2016.01.27
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, we fabricated high quality color conversion component with green/red phosphor and low melting glass frit. The color conversion component was prepared by placing the green and red phosphor layer on slide glass via screen printing process. The properties of color conversion component could be controlled by changing coating sequence, layer thickness and heat treatment temperature. We discovered that optical properties of color conversion component were generally determined by the lowest layer. On the other hand, the heat treatment temperature also affected to correlated color temperature (CCT) and color rending index (CRI). The color conversion component with a green (lower) - red (upper) layer which was sintered at $550^{\circ}C$ showed the best optical properties: CCT, CRI and luminance efficacy were 3340 K, 78, and 56.5 lm/w, respectively.

Keywords

References

  1. B. M. Jung and H. K. Jung, The Procceedings of the KNEE, 20, 31 (2006).
  2. H. W. Jang, Bulletin of KIEEME, 25, 3 (2012).
  3. Y. J. Kim and S. M. Park, J. Mater. Rea. Bull., 49, 469 (2014). https://doi.org/10.1016/j.materresbull.2013.09.035
  4. O. Koichi, Jpn. J. Inst. Elec., 8, 17 (2010).
  5. H. T. Kim, J. H. Kim, J. -K. Lee, Y. C. Kang, C. Sommer, P. Hartmann, P. Pachler, M. Schweighart, S. Tasch, G. Leising and F. P. Wenzl, Mater. Res. Bull., 47, 1428 (2012). https://doi.org/10.1016/j.materresbull.2012.02.050
  6. J. S. Lee, P. Arunkumar, S. Kim, I. J. Lee, H. Lee and W. B. Im, Opt. Lett., 39, 762 (2014). https://doi.org/10.1364/OL.39.000762
  7. K. Sakuma, K. Omichi, N. Kimura, M. Ohashi, D. Tanakaand N. Hirosaki, Opt. Lett., 29, 2001 (2004). https://doi.org/10.1364/OL.29.002001
  8. D. Chen, W. Xiang, X. liang, J. Zhong, H. Yu, M. Ding, H. Lu and Z. Ji, J. Eur. Ceram. Soc., 35, 859 (2015). https://doi.org/10.1016/j.jeurceramsoc.2014.10.002
  9. S. H. Yang, J. S. Lin, F. S. Juang, D. C. Chou, M. H. Chung, C. M. Chenand L. C. Liu Curr. Appl. Phys., 13, 931 (2013). https://doi.org/10.1016/j.cap.2013.01.039
  10. L. -Y. Chen, W. -C. Cheng, C. -C. Huang, Y. -S. Lin and W. -H. Cheng, Opt. Mater. Express, 4, 121 (2014). https://doi.org/10.1364/OME.4.000121
  11. H. -L. Li, X. -J. Liu and L. -P. Huang, Opt. Mater., 29, 1138 (2007). https://doi.org/10.1016/j.optmat.2006.05.002
  12. J. Chen, Y. -Q. Liu, L. Mei and Z. Wang, J. Mater. Chem., 3, (2015).
  13. L. -Y. Chen, W. -C. Cheng, C. -C. Tsai, J. -K. Chang, Y. -C. Huang, J. -C. Huang and W. -H. Cheng, Opt. Express, 22, A671 (2014). https://doi.org/10.1364/OE.22.00A671
  14. Van Nostrand's Scientific Encyclopedia, 3rd Edition. Princeton, New Jersey, Toronto, London, New York: D. Van Nostrand Company, Inc. January (1958).