International Display Workshops General Incorporated Association

2:30 PM - 2:50 PM

[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.