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Article citations


Naganuma, Y., Horiuchi, T., Kato, C. and Tanaka, S. (2013) Low-Temperature Synthesis of Silica Coating on a Poly(Ethylene Terephthalate) Film from Perhydropolysilazane Using Vacuum Ultraviolet Light Irradiation. Surface & Coatings Technology, 225, 40-46.

has been cited by the following article:

  • TITLE: Formation and Gas Barrier Characteristics of Polysilazane-Derived Silica Coatings Formed by Excimer Light Irradiation on PET Films with Vacuum Evaporated Silica Coatings

    AUTHORS: Tomoji Ohishi, Yoshimi Yamazaki

    KEYWORDS: Polysilazane, Photo-Irradiation, Excimer Light, Gas Barrier Characteristics, PET Film, Flexible Electronics

    JOURNAL NAME: Materials Sciences and Applications, Vol.8 No.1, December 28, 2016

    ABSTRACT: The effects of excimer light irradiation on polysilazane coatings formed on PET films with vacuum-evaporated SiO2 coatings and the effects of these coatings on gas barrier characteristics have been investigated. The temperature during light irradiation has a large effect on the coating’s molecular structure and gas barrier characteristics. When irradiation was performed at 100℃, the polysilazane coating transformed into a silica coating, and a compact silica coating at a much lower temperature than with heat treatment alone was produced. Surface irregularities in the vapor-deposited silica coating were smoothed out by the formation of a polysilazane coating, which was transformed into a compact silica coating when irradiated with light, resulting in a significant improvement in the gas barrier characteristics. The water vapor permeability of the thin coating irradiated with excimer light at 100℃ showed only 0.04 g/m2•day (40℃, 90% RH). According to the results of investigation of temperature variation of water-vapor permeability, it is inferred that the developed film has an excellent gas barrier value, namely, 4.90 × 10–4 g/m2•day at 25℃. This gas barrier coated PET film is transparent and flexible, and can be used in the fabrication of flexible electronics. Also, the proposed fabrication method effectively provides a simple low-cost and low-temperature fabrication technique without the need for high vacuum facility.