Photoelectrochemical reactions of electrodes modified with composites between conjugated polymer or ruthenium complex and single-walled carbon nanotubes

Hiroaki Yonemura, Yuuichi Yamamoto, Sunao Yamada

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Composite materials between conjugated polymer; poly[2-methoxy-5-(2'-ethylhexyloxy)-1.4-phenylene vinylene] (MEHPPV), or ruthenium(II)-tris(2,2'-bipyridine) (Ru(bpy)32+)-poly(sodium 4-styrenesulfonate) (PSS) complex and single-walled carbon nanotubes (SWNTs) were fabricated using polymer wrapping method. Formation of SWNT/MEHPPV or SWNT/PSS/Ru(bpy)32+ composite was confirmed by absorption and fluorescence spectra, and AFM images. Electrode modified with SWNT/MEHPPV or SWNT/PSS/Ru(bpy)32+ composite was prepared by casting from DMF solution of SWNT/MEHPPV or aqueous solution of SWNT/PSS/Ru(bpy)32+. The electrode modified with SWNT/MEHPPV or SWNT/PSS/Ru(bpy)32+ composite showed photocurrent response due to photoexcitation of MEHPPV or Ru(bpy)32+. The photocurrents are ascribed to photoinduced electron-transfer reaction from excited state of MEHPPV or Ru(bpy)32+ to SWNT.

Original languageEnglish
Pages (from-to)2620-2625
Number of pages6
JournalThin Solid Films
Volume516
Issue number9
DOIs
Publication statusPublished - Mar 3 2008

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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