Effect of self-assembled monolayer modification on indium-tin oxide surface for surface-initiated vapor deposition polymerization of carbazole thin films

Yuya Umemoto, Seong Ho Kim, Rigoberto C. Advincula, Kuniaki Tanaka, Hiroaki Usuiy

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

With the aim of controlling the interface between an inorganic electrode and an organic layer, a surface-initiated vapor deposition polymerization method was employed to prepare carbazole polymer thin films that are chemically bound to an indium-tin oxide (ITO) surface. A self-assembled monolayer (SAM) that has an azo initiator as a terminal group was prepared on an ITO surface, on which carbazole acrylate monomers were evaporated under ultraviolet (UV) irradiation. The surface morphological characteristics of the films prepared with/without UV irradiation and with/ without the SAM were compared. It was found that the UV irradiation leads to the polymerization of carbazole monomers irrespective of the type of substrate used. On the other hand, the surface morphological characteristics were largely dependent on the existence of the SAM. Uniform and smooth polymer thin films were obtained only when the monomers were evaporated on the SAM-modified surface under UV irradiation. A comparison of film growth characteristics on a UV-ozone-treated ITO surface suggested that the formation of uniform films was made possible not by the modification of surface energy but by the growth of the polymers chemically bound to the substrate surface.

Original languageEnglish
Article number04DK21
JournalJapanese Journal of Applied Physics
Volume49
Issue number4 PART 2
DOIs
Publication statusPublished - 2010 Apr
Externally publishedYes

Fingerprint

Vapor deposition
carbazoles
Self assembled monolayers
Tin oxides
indium oxides
Indium
tin oxides
polymerization
Polymerization
vapor deposition
Thin films
thin films
Irradiation
irradiation
monomers
Monomers
Polymer films
polymers
Film growth
Substrates

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Effect of self-assembled monolayer modification on indium-tin oxide surface for surface-initiated vapor deposition polymerization of carbazole thin films. / Umemoto, Yuya; Kim, Seong Ho; Advincula, Rigoberto C.; Tanaka, Kuniaki; Usuiy, Hiroaki.

In: Japanese Journal of Applied Physics, Vol. 49, No. 4 PART 2, 04DK21, 04.2010.

Research output: Contribution to journalArticle

Umemoto, Yuya ; Kim, Seong Ho ; Advincula, Rigoberto C. ; Tanaka, Kuniaki ; Usuiy, Hiroaki. / Effect of self-assembled monolayer modification on indium-tin oxide surface for surface-initiated vapor deposition polymerization of carbazole thin films. In: Japanese Journal of Applied Physics. 2010 ; Vol. 49, No. 4 PART 2.
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