[14p-302-1~17] 12.4 Organic light-emitting devices and organic transistors

[14p-302-14] Water Vapor Transmission Properties of Standard Gas Barrier Film made using Clay-Polymer Nanocomposite Material

〇Hajime Yoshida¹, Takeo Ebina², Kenta Arai¹, Tokihiko Kobata¹, Ryo Ishii², Takashi Aizawa², Asami Suzuki² (1.AIST RIEM, 2.AIST RICPT)

Keywords:Organic EL, Gas barrier, WVTR

Ultrahigh gas barrier layers for water vapor are coated on a plastic film to prevent the degradation of organic electronic devices. The gas barrier layers are required to show a water vapor transmission rate (WVTR) of 10^-6 g m^-2 day^-1 level. A commercial available standard gas barrier (SGB) film, which is used to confirm the reliability of WVTR measurement, is however limited down to 10^-2 g m^-2 day^-1 level. We showed last year that SGB films with WVTR down to 10-6 g m-2 day-1 level were fabricated by directly attaching clay-polyimide nanocomposite film to a stainless steel sheet with an open hole. Reducing the measurement time by thinning the SGB film, reproducibility of SGB film, and comparison with the measurement results obtained by different measurement method are presented.