Browse > Article
http://dx.doi.org/10.4313/JKEM.2018.31.5.324

Development of Red CaAlSiN3:Eu2+ Phosphor in Glass Ceramic Composite for Automobile LED with High Temperature Stability  

Yoon, Chang-Bun (Department of Advanced Materials Engineering, Korea Polytechnic University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.31, no.5, 2018 , pp. 324-329 More about this Journal
Abstract
Red phosphor in glasses (PiGs) for automotive light-emitting diode (LED) applications were fabricated with 620-nm $CaAlSiN_3:Eu^{2+}$ phosphor and Pb-free silicate glass. PiGs were synthesized and mounted on high-power blue LED to make a monochromatic red LED. PiGs were simple mixtures of red phosphor and transparent glass powder. After being fabricated with uniaxial press and CIP at 300 MPa for 20 min, the green bodies were thermally treated at $550^{\circ}C$ for 30 min to produce high dense PiGs. As the phosphor content increased, the density of the sintered body decreased and PiGs containing 30% phosphor had a full sintered density. Changes in photoluminescence spectra and color coordination were studied by varying the thickness of plates that were mounted after optical polishing. As a result of the optical spectrum and color coordinates, PiG plate with $210{\mu}m$ thickness showed a color purity of 99.7%. In order to evaluate the thermal stability, the thermal quenching characteristics were measured at temperatures of $30{\sim}150^{\circ}C$. The results showed that the red PIG plates were 30% more thermally stable compared to the AlGaInP red chip.
Keywords
620nm $CaAlSiN_3:Eu^{2+}$; Phosphor in glass (PIG); Automobile LED; Low temperature sintering; Red LED; Monochromatic LED; Pb-free silicate glass;
Citations & Related Records
연도 인용수 순위
  • Reference
1 N. Narendran and Y. Gu, J. Disp. Technol., 1, 167 (2005). [DOI: https://doi.org/10.1109/JDT.2005.852510]   DOI
2 R. Mueller-Mach, G. O. Mueller, M. R. Krames, O. B. Shchekin, P. J. Schmidt, H. Bechtel, C. H. Chen, and O. Steigelmann, Phys. Status Solidi RRL, 3, 215 (2009). [DOI: https://doi.org/10.1002/pssr.200903188]   DOI
3 S. Fujita, S. Yoshihara, A. Sakamoto, S. Yamamoto, and S. Tanabe, Proc. Fifth International Conference on Solid State Lighting, Optics and Photonics 2005 (SPIE, San Diego, USA, 2005) p. 594111. [DOI: https://doi.org/10.1117/12.614668]   DOI
4 S. Tanabe, S. Fujita, S. Yoshihara, A. Sakamoto, and S. Yamamoto, Proc. Fifth International Conference on Solid State Lighting, Optics and Photonics 2005 (SPIE, San Diego, USA, 2005) p. 594112. [DOI: https://doi.org/10.1117/12.614681]   DOI
5 Y. K. Lee, J. S. Lee, J. Heo, W. B. Im, and W. J. Chung, Opt. Lett., 37, 3276 (2012). [DOI: https://doi.org/10.1364/ OL.37.003276]   DOI
6 Y. K. Lee, Y. H. Kim, J. Heo, W. B. Im, and W. J. Chung, Opt. Lett., 39, 4084 (2014). [DOI: https://doi.org/10.1364/OL.39. 004084]   DOI
7 C. B. Yoon, S. Kim, S. W. Choi, C. Yoon, S. H. Ahn, and W. J. Chung, Opt. Lett., 41, 1590 (2016). [DOI: https:// doi.org/10.1364/OL.41.001590]   DOI
8 R. J. Xie, N. Hirosaki, K. Sakuma, Y. Yamamoto, and M. Mitomo, Appl. Phys. Lett., 84, 5404 (2004). [DOI: https:// doi.org/10.1063/1.1767596]   DOI
9 N. Narendran, Y. Gu, J. P. Freyssinier, H. Yu, and L. Deng, J. Cryst. Growth, 268, 449 (2004). [DOI: https://doi.org/ 10.1016/j.jcrysgro.2004.04.071]   DOI
10 M. H. Chang, D. Das, P. V. Varde, and M. Pecht, Microelectron. Reliab., 52, 762 (2012). [DOI: https://doi.org/ 10.1016/j.microrel.2011.07.063]   DOI
11 S. Nishiura, S. Tanabe, K. Fujioka, and Y. Fujimoto, Opt. Mater., 33, 688 (2011). [DOI: https://doi.org/10.1016/j.optmat. 2010.06.005]   DOI