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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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