Jump to main content
Jump to site search

Issue 11, 2013
Previous Article Next Article

Decoupling light absorption and charge transport properties in near IR-sensitized Fe2O3 regenerative cells

Author affiliations

Abstract

We report a regenerative iron oxide nanorod solar cell sensitized with squarine (SQ02) dye, which improves the overall light harvesting due to the dye's complementary absorption. The use of illumination sources which enabled selective excitation of Fe2O3 and the dye independently allowed the decoupling of transport and light absorption in Fe2O3. From absorbed photon-to-current conversion efficiency (APCE) calculations, it was found out that about 80% (at λ = 680 nm) of the absorbed photons in SQ02 dye are converted to electrons and transported without any further loss into the FTO electrode. Impedance spectroscopy revealed that bulk recombination is still a prominent problem while utilizing hematite as a photoanode in a dye sensitized configuration.

Graphical abstract: Decoupling light absorption and charge transport properties in near IR-sensitized Fe2O3 regenerative cells

Back to tab navigation

Supplementary files

Publication details

The article was received on 19 Jul 2013, accepted on 20 Sep 2013 and first published on 23 Sep 2013


Article type: Communication
DOI: 10.1039/C3EE42438C
Citation: Energy Environ. Sci., 2013,6, 3280-3285
  •   Request permissions

    Decoupling light absorption and charge transport properties in near IR-sensitized Fe2O3 regenerative cells

    M. H. Kumar, N. Mathews, P. P. Boix, K. Nonomura, S. Powar, L. Y. Ming, M. Graetzel and S. G. Mhaisalkar, Energy Environ. Sci., 2013, 6, 3280
    DOI: 10.1039/C3EE42438C

Search articles by author

Spotlight

Advertisements