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http://dx.doi.org/10.4313/JKEM.2006.19.3.255

Improvement of Permeation of Applied Multi-layer Encapsulation of Thin Films on Ethylene Terephthalate(PET)  

Kim Jong-Hwan (연세대학교 전자공학과)
Han Jin-Woo (연세대학교 전자공학과)
Kim Young-Hwan (연세대학교 전자공학과)
Seo Dae-Shik (연세대학교 전자공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.19, no.3, 2006 , pp. 255-259 More about this Journal
Abstract
In this paper, the inorganic-organic thin film encapsulation layer was newly adopted to protect the organic layer from moisture and oxygen. Using the electron beam, Sputter and Spin-Coater system, the various kinds of inorganic and organic thin-films were deposited onto the Ethylene Terephthalate(PET) and their interface properties between organic and inorganic layer were investigated. In this investigation, the SiON and Polyimide(PI) layer showed the most suitable properties. Under these conditions, the WVTR(water vapour transition rate) for PET can be reduced from level of $0.57\;g/m^2{\cdot}day$ (bare subtrate) to $1{\times}10^{-5}\;g/m^2{\cdot}day$ after application of a SiON and Polyimide layer. These results indicates that the SiON/PI/SiON/PI/PET barrier coatings have high potential for flexible organic light-emitting diode(OLED) applications.
Keywords
SiON Polyimide; Multi-layer; Encapsulation;
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