Fabrication of fibrous films with rugate structure prepared by layer-by-layer self-assembly method

Application to photoelectrode of dye-sensitized solar cell

Yosuke Tsuge, Kohei Inokuchi, Katsuhiro Onozuka, Seimei Shiratori

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In this study, we report the fabrication of anatase TiO2 film with high porosity and large surface area by using a new fibrous replica prepared by layer-by-layer self-assembly technique. The scanning electron microscope photographs revealed that the fibrous replica with a rugate structure was obtained by immersing a flat polymer film into a SA solution. By using the fabricated porous TiO2 film with ca. 4.5 μm of film thickness as the photoelectrode for dye-sensitized solar cell, the photocurrent-voltage characteristic in an energy conversion efficiency (Eff) was improved from Eff = 1.49% to Eff = 3.53%, because the amount of loaded dye absorbed on porous TiO2 film was increased.

Original languageEnglish
Pages (from-to)542-547
Number of pages6
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume284-285
DOIs
Publication statusPublished - 2006 Aug 15

Fingerprint

Self assembly
self assembly
solar cells
dyes
Fabrication
fabrication
replicas
Photocurrents
Energy conversion
Polymer films
Titanium dioxide
Conversion efficiency
Film thickness
energy conversion efficiency
Coloring Agents
Electron microscopes
Dyes
Porosity
photographs
anatase

Keywords

  • Dye-sensitized solar cell
  • Layer-by-layer (LBL) self-assembly
  • Replica
  • TiO film

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

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abstract = "In this study, we report the fabrication of anatase TiO2 film with high porosity and large surface area by using a new fibrous replica prepared by layer-by-layer self-assembly technique. The scanning electron microscope photographs revealed that the fibrous replica with a rugate structure was obtained by immersing a flat polymer film into a SA solution. By using the fabricated porous TiO2 film with ca. 4.5 μm of film thickness as the photoelectrode for dye-sensitized solar cell, the photocurrent-voltage characteristic in an energy conversion efficiency (Eff) was improved from Eff = 1.49{\%} to Eff = 3.53{\%}, because the amount of loaded dye absorbed on porous TiO2 film was increased.",
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T2 - Application to photoelectrode of dye-sensitized solar cell

AU - Tsuge, Yosuke

AU - Inokuchi, Kohei

AU - Onozuka, Katsuhiro

AU - Shiratori, Seimei

PY - 2006/8/15

Y1 - 2006/8/15

N2 - In this study, we report the fabrication of anatase TiO2 film with high porosity and large surface area by using a new fibrous replica prepared by layer-by-layer self-assembly technique. The scanning electron microscope photographs revealed that the fibrous replica with a rugate structure was obtained by immersing a flat polymer film into a SA solution. By using the fabricated porous TiO2 film with ca. 4.5 μm of film thickness as the photoelectrode for dye-sensitized solar cell, the photocurrent-voltage characteristic in an energy conversion efficiency (Eff) was improved from Eff = 1.49% to Eff = 3.53%, because the amount of loaded dye absorbed on porous TiO2 film was increased.

AB - In this study, we report the fabrication of anatase TiO2 film with high porosity and large surface area by using a new fibrous replica prepared by layer-by-layer self-assembly technique. The scanning electron microscope photographs revealed that the fibrous replica with a rugate structure was obtained by immersing a flat polymer film into a SA solution. By using the fabricated porous TiO2 film with ca. 4.5 μm of film thickness as the photoelectrode for dye-sensitized solar cell, the photocurrent-voltage characteristic in an energy conversion efficiency (Eff) was improved from Eff = 1.49% to Eff = 3.53%, because the amount of loaded dye absorbed on porous TiO2 film was increased.

KW - Dye-sensitized solar cell

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KW - Replica

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