Effect of Self-Assembled Monolayer Modification on Indium–Tin Oxide Surface for Surface-Initiated Vapor Deposition Polymerization of Carbazole Thin Films

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概要

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• 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.

• 2010-04-25

著者

• Advincula Rigoberto

  University Of Houston

• Rigoberto C.

  University of Houston, 136 Fleming Building, Houston, TX 77204-5008, U.S.A.

• Seong-Ho Kim

  Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan

• Hiroaki Usui

  Tokyo University of Agriculture and Technology, Department of Organic and Polymer Materials Chemistry, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan

• Umemoto Yuya

  Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan

• Kim Seong-Ho

  Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan

• Kuniaki Tanaka

  Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan

• Yuya Umemoto

  Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan

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• Effect of Self-Assembled Monolayer Modification on Indium–Tin Oxide Surface for Surface-Initiated Vapor Deposition Polymerization of Carbazole Thin Films
• Interface Control by Surface-Initiated Deposition Polymerization and Its Application to Organic Light-Emitting Devices
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