Browse > Article
http://dx.doi.org/10.6111/JKCGCT.2021.31.5.212

Ce:YAG remote phosphor coating for white LED with silica sol binder  

Gim, Su Jin (Department of Polymer Science and Engineering, Dankook University)
Park, Ha Na (Department of Chemical Engineering, Dankook University)
Choi, Jae Ho (Division of Materials Science and Engineering, Hanyang University)
Jung, Yoon Sung (Division of Materials Science and Engineering, Hanyang University)
Kim, Hyeong-Jun (Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.31, no.5, 2021 , pp. 212-217 More about this Journal
Abstract
The applicability of the white LED from the blue LED of the coating film as a binder for surface and curved coatings were confirmed. The particle size of YAG is D50: 9~10 ㎛, and the crystal structure is garnet (Y3Al5O12), cubic. The coating film had no cracks, at the same time, the silica sol was uniformly coated with YAG phosphor, and the YAG content and thickness in the coating film showed a tendency to increase up to 40 ㎛ in proportion to the increase in the amount added. Furthermore, as the YAG content increased, the PL emission intensity increased and the color coordinate shift toward the end of the chromatic locus curve was confirmed.
Keywords
Silica sol; YAG phosphor; Coating; PL; White LED;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 J.M. Kim, J.K. Park, K.N. Kim, S.J. Lee, C.H. Kim and H.G. Jang, "Synthesis and luminescent characteristics of Sr2Ga2S5:Eu2+ yellow phosphor for LEDs", J. Korean Chem. Soc. 50 (2006) 238.
2 H.W. Choi and J.H. Ko, "Analysis of luminous characteristics of white LEDs depending on yellow phosphors", Korean J. Opt. Photon. 24 (2013) 64.   DOI
3 H.W. Choi and J.H. Ko, "Temperature effect on the optical properties of YAG and silicate phosphor-based white light emitting diodes", Korean J. Opt. Photon. 24 (2013) 135.   DOI
4 Y. Narukawa, M. Ichikawa, D. Sanga, M. Sano and T. Mukai, "White light emitting diodes with super-high luminous efficacy", J. Phys. D: Appl. Phys. 43 (2010) 354002.   DOI
5 J.M. Kim, J.K. Park, K.N. Kim, S.J. Lee, C.H. Kim and H.G. Jang, "Synthesis and luminescent characteristics of Sr2Ga2S5:Eu2+ yellow phosphor for LEDs", J. Korean Chem. Soc. 50 (2006) 238.
6 J.I. An, C.H. Han, J.K. Park and C.H. Kim, "Synthesis of phosphor for light-emitting diodes by sol-gel method", Korean J. Mater. Res. 14 (2004) 749.   DOI
7 S.H. Choi, S.B. Kwon, J.H. Yoo, J.P. Kim, W.H. Kim, H.J. Jeong, B.Y. Kim, D.H. Yoon and Y.H. Song, "Fabrication and analysis of luminous properties of phosphor ceramic for laser headlamp in automotive application", J. Korean Cryst. Growth Cryst. Technol. 30 (2020) 74.
8 S.K. Lee and H.U. Choe, "Photoluminescence characteristics of YAG:Ce phosphor by combustion method", J. Korean Inst. Electr. Electron. Mater. Eng. 20 (2007) 536.   DOI
9 W.T. Yoo, G.Y. Hong, I.W. Park, B.W. Jeoung and J.S. Yoo, "The effect of heat-treatment on YAG phosphors for LEDs applications", Korean J. Chem. Eng. 8 (2002) 5262.
10 H.S. Yu, D.S. Gang and D.Y. Jeon, "Introduction to fluorescent metabolism for beginners", Inf. Disp. 11 (2010).
11 Shigeo Hamaguchi, "Coating technology by sol-gel method", New Glass 30 (2015) 4.
12 E.H. Park and B.S. Bae, "Sol-gel thin film coating process", Ceram. Int. 3 (2000) 22.
13 X. Zhang, J. Yu, J. Wang, B. Lei, Y, Liu, Y, Cho, R.J. Xie, H.W. Zahng, Y. Li, Z. Tian, Y. Li and Q. Su, "All-inorganic light convertor based on phosphor-in-glass engineering for next-generation modular high-brightness white LEDs/LDs", ACS Photonics 4 (2017) 986.   DOI
14 C.H. Won, "About the sol-gel method and its application", J. Korean Soc. Miner. Energy Resour. Eng. 28 (1991) 66.
15 W.K. Chung, K.H. Park, H.J. Yu and S.H. Kim, "Fabrication of white light-emitting diodes from YAG:Ce blending with CdSe/ZnSe quantum dots as phosphor", Korean J. Chem. Eng. 15 (2009) 2140.
16 S.M. Kim, S.H. Gee, J.I. Goo and T.O. Kim, "The luminescence properties of YAG:Tb3+ phosphor prepared by hydrothermal synthesis", J. Kor. Ceram. Soc. 37 (2000) 746.