International Display Workshops General Incorporated Association

14:30 〜 14:50

[FLX5-4] Solution-Processed Ultrahigh PHPS Gas Barriers with Glass-like Performance

*Tatsuki Sasaki1、Lina Sun1、Yu Kurosawa1、Tatsuhiro Takahashi1、Yoshiyuki Suzuri1 (1.Yamagata University (Japan))

water vapor barrier films, solution processes, perhydropolysilazanes, vacuum UV, organic light-emitting diodes

https://doi.org/10.36463/idw.2022.1087

We report all-solution-processed gas barriers using perhydropolysilazane (PHPS)-derived SiN films densified by vacuum ultraviolet (VUV) irradiation in a nitrogen atmosphere. The appropriate PDSN thickness and irradiated VUV dose afford an excellent WVTR of 4.8x10-5 g m-2 day-1, which makes it one of the best-performing water vapor barriers recorded to date.