Super-bright and short-lived photoluminescence of textured Zn2SiO4:Mn2+ phosphor film on quartz glass

Jehong Park; Kwangwon Park; Jaebum Lee; Jongsu Kim; Kwangil Seo; Kevin Kwon; Patrick Kung; Seongsin M. Kim

doi:10.1117/12.840456

12 February 2010 Super-bright and short-lived photoluminescence of textured Zn₂SiO₄:Mn²⁺ phosphor film on quartz glass

Jehong Park, Kwangwon Park, Jaebum Lee, Jongsu Kim, Kwangil Seo, Kevin Kwon, Patrick Kung, Seongsin M. Kim

Proceedings Volume 7618, Emerging Liquid Crystal Technologies V; 761818 (2010) https://doi.org/10.1117/12.840456
Event: SPIE OPTO, 2010, San Francisco, California, United States

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.

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Jehong Park, Kwangwon Park, Jaebum Lee, Jongsu Kim, Kwangil Seo, Kevin Kwon, Patrick Kung, and Seongsin M. Kim "Super-bright and short-lived photoluminescence of textured Zn₂SiO₄:Mn²⁺ phosphor film on quartz glass", Proc. SPIE 7618, Emerging Liquid Crystal Technologies V, 761818 (12 February 2010); https://doi.org/10.1117/12.840456

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