Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/8467
Title: Fourier-Transform Photocurrent Spectroscopy for a fast and highly sensitive spectral characterization of organic and hybrid solar cells
Authors: VANDEWAL, Koen 
GORIS, Ludwig 
HAELDERMANS, Ilse 
NESLADEK, Milos 
HAENEN, Ken 
WAGNER, Patrick 
MANCA, Jean 
Issue Date: 2008
Publisher: ELSEVIER SCIENCE SA
Source: THIN SOLID FILMS, 516(20). p. 7135-7138
Abstract: Two modes of Fourier-Transform Photocurrent Spectroscopy (FTPS) are presented for a fast and sensitive determination of photocurrent spectra of organic and dye sensitized solar cells. Furthermore, FTPS allows to spectrally resolve sub-bandgap absorption phenomena in P3HT, in organic P3HT:PCBM bulk heterojunctions and in hybrid P3HT/TiO2 solar cells. The sub-bandgap absorption in the P3HT:PCBM blend is dominated by a band due to the formation of a ground-state charge-transfer complex between the polymer and PCBM. In P3HT/TiO2 junctions such a charge-transfer complex band is not observed. Long-lived light induced sub-bandgap states appear in pure P3HT and in P3HT/TiO2 junctions after irradiation with E > 1.9 eV (c) 2007 Elsevier B.V. All rights reserved.
Notes: Hasselt Univ, Inst Mat Res, B-3590 Diepenbeek, Belgium. IMEC IMOMEC, B-3590 Diepenbeek, Belgium. LIST CEA Rech Technol, DETECS SSTM LTD, F-91191 Gif Sur Yvette, France.
Keywords: organic solar cells; dye sensitized solar cells; FTPS; optical spectroscopy
Document URI: http://hdl.handle.net/1942/8467
ISSN: 0040-6090
e-ISSN: 1879-2731
DOI: 10.1016/j.tsf.2007.12.056
ISI #: 000258603900085
Category: A1
Type: Journal Contribution
Validations: ecoom 2009
Appears in Collections:Research publications

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