Preparation of surface-tethered polymer layer on inorganic substrates by photoreactive self-assembled monolayer

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

*この研究の対応する著者

研究成果: Article査読

8 被引用数 (Scopus)

抄録

A self-assembled monolayer (SAM) that has benzophenone (BP) terminal group was prepared on Si and indium-tin oxide (ITO) substrates, on which poly(9-vinyl carbazol) (PVK) was spin-coated and then irradiated with ultraviolet (UV) light. Upon UV irradiation, the BP unit reacted with the PVK backbone, yielding a crosslinked PVK layer that was covalently tethered to the substrate surface. Using this procedure, a patterned thin film of PVK was obtained by irradiating UV light through a photomask and then rinsing in chloroform. When polystylene (PSt) was spin-coated on the BP-SAM, only a thin interfacial layer was tethered by UV irradiation because PSt does not crosslink upon UV irradiation. The BP-SAM improved the adhesion strength between the PVK layer and ITO substrate without reducing the carrier injection from ITO to PVK. The photoreactive BP-SAM appeared to be an effective method to improve the interface between an inorganic electrode and a polymer layer deposited on its surface.

本文言語English
ページ(範囲)78-83
ページ数6
ジャーナルThin Solid Films
554
DOI
出版ステータスPublished - 2014 3月 3
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 表面および界面
  • 表面、皮膜および薄膜
  • 金属および合金
  • 材料化学

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