A compact polymer-inorganic hybrid gas barrier nanolayer for flexible organic light-emitting diode displaysopen access
- Authors
- Kim, Seung Hun; Song, Seung Yong; Kim, Soo Youn; Chang, Moon Won; Kwon, Hyo Jeong; Yoon, Kwan Hyuck; Sung, Woo Yong; Sung, Myung Mo; Chu, Hye Yong
- Issue Date
- Apr-2022
- Publisher
- NATURE PORTFOLIO
- Citation
- NPJ FLEXIBLE ELECTRONICS, v.6, no.1, pp.1 - 6
- Indexed
- SCIE
SCOPUS
- Journal Title
- NPJ FLEXIBLE ELECTRONICS
- Volume
- 6
- Number
- 1
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/138939
- DOI
- 10.1038/s41528-022-00154-y
- ISSN
- 2397-4621
- Abstract
- Atomic layer infiltration technology allows the formation of a nanometer-thick polymer-inorganic hybrid barrier layer in polymer material for flexible organic light-emitting diode (OLED) displays. In this study, according to transmission electron microscopy and secondary-ion mass spectrometry analysis results under various process conditions, a compact polymer-inorganic hybrid nanolayer was successfully formed in a polymer and good barrier performance was revealed with a low water vapor transmission rate under optimal process conditions. Additionally, through gas chromatography-mass spectrometry measurements after ultra-violet radiation testing, polymer out-gassing decreased compared to bare polymers. Based on barrier properties, the polymer with a polymer-inorganic hybrid barrier nanolayer was applied to a flexible OLED display as a substrate. During storage tests and folding tests, the flexible OLED display exhibits good reliability and better flexibility compared to those with an inorganic barrier layer. These results confirm that the polymer-inorganic hybrid nanolayer is suitable for barrier layer formation in flexible OLED displays.
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