Improvement of Permeation of Solvent-free Multi-Layer Encapsulation of thin films on Ethylene Terephthalate(PET)

고분자 기판위에 유기 용매를 사용하지 않은 다층 박막 Encapsulation 기술 개발

  • Published : 2006.04.28

Abstract

In this paper, the inorganic multi-layer thin film encapsulation was newly adopted to protect the organic layer from moisture and oxygen. Using the electron beam, Sputter, inorganic multi-layer thin-film encapsulation was deposited onto the Ethylene Terephthalate(PET) and their interface properties between inorganic and organic layer were investigated. In this investigation, the SiON SiO2 and parylene layer showed the most suitable properties. Under these conditions, the WVTR for PET can be reduced from a level of $0.57\;g/m^2/day$ (bare subtrate) to 1*10-5 g/$m^2$/day after application of a SiON and SiO2 layer. These results indicates that the PET/SiO2/SiON/Parylene barrier coatings have high potential for flexible organic light-emitting diode(OLED) applications.

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