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Proceedings Paper

Super-bright and short-lived photoluminescence of textured Zn2SiO4:Mn2+ phosphor film on quartz glass
Author(s): Jehong Park; Kwangwon Park; Jaebum Lee; Jongsu Kim; Kwangil Seo; Kevin Kwon; Patrick Kung; Seongsin M. Kim
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Paper Abstract

Green-emissive textured Zn2SiO4:Mn2+ phosphor film was fabricated by a thermal diffusion of ZnO:Mn on quartz glass. The characterization has been performed in terms of Mn2+ ions concentration (Mn/Zn=1~9 mol %). As an increase of Mn2+ ions concentration in the Zn2SiO4:Mn2+ phosphor film, the emission peak was red shifted from 519 nm to 526 nm, and the decay time to 10% of the maximum intensity was shorter from 20 ms to 0.5 ms. All annealed Zn2SiO4:Mn2+ phosphor films became textured along some hexagonal directions on the amorphous quartz glass. The brightest Zn2SiO4:Mn2+ film at optimal Mn2+ concentration of 5 % showed the photoluminescence brightness of 65 % and the shortened decay time of 4.4 ms in comparison with a commercially Zn2SiO4: Mn2+ powder phosphor screen. The excellencies can be attributed to a unique textured structure.

Paper Details

Date Published: 12 February 2010
PDF: 5 pages
Proc. SPIE 7618, Emerging Liquid Crystal Technologies V, 761818 (12 February 2010); doi: 10.1117/12.840456
Show Author Affiliations
Jehong Park, Pukyong National Univ. (Korea, Republic of)
Kwangwon Park, Pukyong National Univ. (Korea, Republic of)
Jaebum Lee, Pukyong National Univ. (Korea, Republic of)
Jongsu Kim, Pukyong National Univ. (Korea, Republic of)
The Univ. of Alabama (United States)
Kwangil Seo, MUJIN Co. (Korea, Republic of)
Kevin Kwon, MUJIN Co. (Korea, Republic of)
Patrick Kung, The Univ. of Alabama (United States)
Seongsin M. Kim, The Univ. of Alabama (United States)

Published in SPIE Proceedings Vol. 7618:
Emerging Liquid Crystal Technologies V
Liang-Chy Chien, Editor(s)

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