Enhanced electron transport through template-derived pore channels in dye-sensitized solar cells

Sarika Phadke, Aurelien Du Pasquier, Dunbar P Birnie

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Dye-sensitized solar cells use porous nanoparticle TiO2 coating as their photoanode. To obtain effective dye adsorption and better electrolyte permeation in the TiO2 coating, the porosity structure must be fully, three-dimensionally interconnected. Templated processing offers the advantage of preparing TiO2 photoanodes in controlled shape and interconnection to the porosity structures that result, including the creation of dual size scale porosity in some cases. In the present work, an emulsion templating method was employed to obtain the dual porosity in the titania coating. We have studied the effect of the enhanced permeation of the electrolyte provided by these interconnected pore channels using electrochemical impedance spectroscopy. The change in internal resistances of the dye-sensitized solar cell during operation is correlated with the microstructural features using scanning electron microscopy, mercury porosimetry and I-V characterization.

Original languageEnglish
Pages (from-to)18342-18347
Number of pages6
JournalJournal of Physical Chemistry C
Volume115
Issue number37
DOIs
Publication statusPublished - Sep 22 2011

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templates
Porosity
solar cells
dyes
porosity
Permeation
Coatings
Electrolytes
electrons
coatings
electrolytes
Emulsions
Mercury
Electrochemical impedance spectroscopy
Coloring Agents
Dyes
Titanium
emulsions
Nanoparticles
Adsorption

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Enhanced electron transport through template-derived pore channels in dye-sensitized solar cells. / Phadke, Sarika; Du Pasquier, Aurelien; Birnie, Dunbar P.

In: Journal of Physical Chemistry C, Vol. 115, No. 37, 22.09.2011, p. 18342-18347.

Research output: Contribution to journalArticle

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