A high-performance transparent moisture barrier using surface-modified nanoclay composite for OLED encapsulation

Dong Jun Kang, Go Un Park, Hoy Yul Park, Jang Ung Park, Hyeon Gyun Im

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We report the facile fabrication of transparent and high-performance moisture barrier material (SC nanocomposite) using surface-modified bentonite clay (SC) as nanofiller and glycidyl silane as a surface-modifier/binder via simple, cost-effective and mass-producible process. SC is synthesised using a base-catalysed sol-gel process; their hydroxyl surfaces are decorated with glycidyl ligands to endure the densely stacked structure and high clay content in the final nanocomposite. The SC nanocomposite barrier exhibits high optical transparency (>90), dense multi-stacked clay structure, and considerably enhanced moisture barrier performance. We discuss the fabrication and physical properties of the SC nanocomposite. To assess the applicability of the nanocomposite as a high-performance barrier material in practical applications, typical organic light-emitting devices are encapsulated, and their lifetime is evaluated.

Original languageEnglish
Pages (from-to)66-71
Number of pages6
JournalProgress in Organic Coatings
Volume118
DOIs
Publication statusPublished - 2018 May

Bibliographical note

Funding Information:
This work was supported by the Primary Research Program (17-12-N0101-30) of the Korea Electrotechnology Research Institute (KERI) . This material also is based upon work supported by the Ministry of Trade, Industry & Energy (MOTIE, Korea) under Industrial Technology Innovation Program (10080577).

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Surfaces, Coatings and Films
  • Organic Chemistry
  • Materials Chemistry

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