Jump to main content
Jump to site search

Issue 26, 2013
Previous Article Next Article

Characterization of charge transport properties of a 3D electrode for dye-sensitized solar cells

Author affiliations

Abstract

Electron transport and recombination in three-dimensionally-ordered (3D-ordered) structure electrodes were investigated using intensity-modulated photocurrent and photovoltage spectroscopy. The surface-modified TiO2 inverse opal structure was applied as a 3D electrode. The morphology, crystalline structure and surface states of the 3D-ordered structure were characterized by SEM, TEM and XPS and compared to those of the conventional nanoparticulate TiO2 structure. The performance of the 3D electrode was also evaluated by comparing the transport time and recombination lifetime to those of the conventional electrodes. Remarkably, the recombination lifetime in inverse opal was found to be greater than in nanocrystalline TiO2 by 4.3–6.2 times, thus improving the electron collection efficiency by 10%. Comparing the photovoltaic performance, although the dye adsorption of the 3D-ordered porous electrode is lower, the electrode achieves a photocurrent density comparable to that of a nanoparticulate TiO2 electrode due to the higher light scattering as well as the higher collection efficiency.

Graphical abstract: Characterization of charge transport properties of a 3D electrode for dye-sensitized solar cells

Back to tab navigation

Supplementary files

Publication details

The article was received on 17 Jan 2013, accepted on 26 Apr 2013 and first published on 22 May 2013


Article type: Paper
DOI: 10.1039/C3CP50214G
Citation: Phys. Chem. Chem. Phys., 2013,15, 10835-10840
  •   Request permissions

    Characterization of charge transport properties of a 3D electrode for dye-sensitized solar cells

    C. Cho, H. Kim and J. H. Moon, Phys. Chem. Chem. Phys., 2013, 15, 10835
    DOI: 10.1039/C3CP50214G

Search articles by author

Spotlight

Advertisements