Highly Oriented Gold/Nanoclay-Polymer Nanocomposites for Flexible Gas Barrier Films
- Authors
- Song, Eun-Ho; Kang, Byung-Hyun; Kim, Tan-Young; Lee, Hyun-Jun; Park, Young-Wook; Kim, Young-Cho; Ju, Byeong-Kwon
- Issue Date
- 4-Mar-2015
- Publisher
- AMER CHEMICAL SOC
- Keywords
- flexible gas barrier films; nanoclay; 2D materials; gold complex; water vapor transmission rate
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.7, no.8, pp.4778 - 4783
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 7
- Number
- 8
- Start Page
- 4778
- End Page
- 4783
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/94153
- DOI
- 10.1021/am508641g
- ISSN
- 1944-8244
- Abstract
- Layer-by-layer (LBL) assembly, which uses electronic and ionic intermolecular bonding under nonvacuum conditions, is a promising technology for fabricating gas barrier films owing to its simple processing and easy formation of a multilayer structure. In this research, nanoclay-polymer multilayers of Na+-montmorillonite (Na-MMT) were fabricated. Particularly, the addition of AuCl3 on fabricated MMT layers caused a reaction with the surface silanol functional groups (Si-O-H) of the MMT platelets, resulting in the formation of Au2O3 on the MMT-polymer multilayers. The Au2O3 filled the vacancies between the MMT platelets and linked the MMT platelets together, thus forming a gas barrier film that reduced the water vapor transmission rate (WVTR) to 3.2 x 10(-3) g m(-2) day(-1). AuCl3-treated MMT-polymer multilayers thus have the potential to be utilized for manufacturing gas barrier films for flexible electronics on a large scale.
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