Layer-by-layer self-assembly replication technique: Application to photoelectrode of dye-sensitized solar cell

Shinobu Takenaka, Yosiki Maehara, Hiroaki Imai, Masato Yoshikawa, Seimei Shiratori

Research output: Contribution to journalConference articlepeer-review

43 Citations (Scopus)


A new replication method of depositing the crystalline TiO2 thin film on the nanoporous multilayer film of weak-polyelectrolytes, that is, the combination of the chemical solution deposition and layer-by-layer self-assembly method is proposed. Scanning electron microscopic observation revealed that the nanoporous and extremely high surface area TiO2 thin film, well imprinted with the surface structure and the inside nano-structure of layer-by-layer self-assembled thin film using as the replica, was successfully fabricated. By using the nanoporous TiO2 thin film with high surface area as the photoelectrode for dye-sensitized solar cell, the improvement of the photocurrent-voltage characteristic was achieved, resulting in an energy conversion efficiency of η=0.70%.

Original languageEnglish
Pages (from-to)346-351
Number of pages6
JournalThin Solid Films
Publication statusPublished - 2003 Aug 22
EventThe 5th International Conference on Nano-Molecular Electronics - Kobe, Japan
Duration: 2002 Dec 102002 Dec 12


  • Dye-sensitized solar cell
  • High surface area
  • Layer-by-layer self-assembly
  • Replication

ASJC Scopus subject areas

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


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