Optical Design and Engineering

Comparison between mixed and spatially separated remote phosphor fabricated via a screen-printing process

[+] Author Affiliations
Byung-Ho Kim, Jonghee Hwang, Young Jin Lee, Jin-Ho Kim, Dae-Woo Jeon, Mi Jai Lee

Korea Institute of Ceramic Engineering and Technology, Optic and Display Material Center, 101, Soho-ro, Jinju-si, Gyeongsangnam-do 660-031, Republic of Korea

Opt. Eng. 55(8), 085103 (Aug 12, 2016). doi:10.1117/1.OE.55.8.085103
History: Received May 1, 2016; Accepted July 27, 2016
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Abstract.  We developed a fabrication method for remote phosphor by a screen-printing process, using green phosphor, red phosphor, and thermally stable glass frit. The glass frit was introduced for long-term stability. The optical properties of the remote phosphor were observed via an integrating sphere; the photoluminescence spectrum dramatically changed on incorporating a minor amount of the red phosphor. These unique optical properties were elucidated using four factors: phosphor ratio, scattering induced by packing density, light intensity per unit volume, and reabsorption. The thermal stability of the remote phosphor was investigated at 500°C, demonstrating its outstanding thermal properties.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Byung-Ho Kim ; Jonghee Hwang ; Young Jin Lee ; Jin-Ho Kim ; Dae-Woo Jeon, et al.
"Comparison between mixed and spatially separated remote phosphor fabricated via a screen-printing process", Opt. Eng. 55(8), 085103 (Aug 12, 2016). ; http://dx.doi.org/10.1117/1.OE.55.8.085103


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