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 journalArticle

3 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 1

Fingerprint

Organic light emitting diodes (OLED)
Encapsulation
Bentonite
Clay
Moisture
Nanocomposites
Composite materials
Silanes
Fabrication
clay
Hydroxyl Radical
Transparency
Sol-gel process
Binders
Physical properties
Ligands
Costs

All Science Journal Classification (ASJC) codes

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

Cite this

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A high-performance transparent moisture barrier using surface-modified nanoclay composite for OLED encapsulation. / Kang, Dong Jun; Park, Go Un; Park, Hoy Yul; Park, Jang-Ung; Im, Hyeon Gyun.

In: Progress in Organic Coatings, Vol. 118, 01.05.2018, p. 66-71.

Research output: Contribution to journalArticle

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