Preparation of poly(9-Vinylcarbazole) thin films chemically tethered to ITO surface via self-assembled monolayer having benzophenone terminal group

Hanae Ohtsuka, Seong Ho Kim, Maria Celeste R Tria, Rigoberto C. Advincula, Hiroaki Usui

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

With a goal of controlling the interface interaction between the indium-tin oxide (ITO) substrate and a polymer thin film, a self-assembled monolayer (SAM) bearing benzophenone terminal group was formed on the ITO substrate. The SAM formation was achieved by dipping the ITO substrate into solutions of 3-glycidoxypropyl trimethoxysilane and 4-aminobenzophenone, successively. A thin film of poly(9-vinylcarbazole) (PVK) was spin-coated on this surface and exposed to UV light to induce a photochemical reaction between the benzophenone terminal group of the SAM and the PVK. Surface characterization after removing the physisorbed PVK by an organic solvent revealed that PVK films prepared by this method are covalently bound to the ITO surface. The same process was achieved also on Si and WO x surfaces.

Original languageEnglish
Pages (from-to)125-133
Number of pages9
JournalMolecular Crystals and Liquid Crystals
Volume568
Issue number1
DOIs
Publication statusPublished - 2012 Dec 3
Externally publishedYes

Keywords

  • Benzophenone
  • interface control
  • ITO
  • poly(vinylcarbazole)
  • self-assembled monolayer

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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