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Optical Properties of Co 3 O 4 ‐Doped ZnO–B 2 O 3 –SiO 2 –Al 2 O 3 Glass System for a Transparent Dielectric Layer
Author(s) -
Seo ByungHwa,
Kim Hyungsun,
Suh Dong Hack
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03365.x
Subject(s) - doping , materials science , transmittance , analytical chemistry (journal) , dielectric , mineralogy , chemistry , optoelectronics , chromatography
There has been a need to improve color temperature without using asymmetric cell structures using transparent dielectric layers with variation of Co 3 O 4 contents in plasma display panel (PDP). In this study, ZnO–B 2 O 3 –SiO 2 –Al 2 O 3 glasses with variations of the Co 3 O 4 content (0, 0.5, 1.0, 1.5, and 2.0 wt%) were fabricated and the optical properties of these glasses were characterized. As the content of Co 3 O 4 increased, the transmittance of the red region (from 580 to 780 nm) decreased more than of the blue region (from 380 to 500 nm). This change of transmittance induced the transition of the coordination of the color temperature toward the blue region. Therefore, the addition of 2 wt% Co 3 O 4 can improve the color temperature from 6087 to 7378 K and the result was confirmed using simulation.