Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2754
Title: Hybrid solar cells based on dye-sensitized nanoporous TiO2 electrodes and conjugated polymers as hole transport materials
Authors: Gebeyehu, D
Brabec, CJ
Sariciftci, NS
VANGENEUGDEN, Dirk 
KIEBOOMS, Rafael
VANDERZANDE, Dirk 
Kienberger, F
Schindler, H
Issue Date: 2001
Publisher: ELSEVIER SCIENCE SA
Source: SYNTHETIC METALS, 125(3). p. 279-287
Abstract: Solid state dye-sensitized photovoltaic solar cells were fabricated using a three-layer concept. The hybrid devices consist of a transparent inorganic nanocrystalline titanium dioxide (nc-TiO2) layer with a thickness of 2 mum as electron acceptor and for electron transport. A surface-adsorbed RuL2(NCS)2:2 TBA dye complex (where L = 2,2'-bipyridyl-4,4'-dicarboxylic acid; TBA = tetrabutylammonium) is utilized for light absorption and electron injection to the conduction band of TiO2. For the transport of holes to the back contact electrode conjugated polymers are used, either a poly(3-octylthiophene) (P3OT), or a low band-gap thiophene-isothianaphthene-based copolymer (PDTI). These devices exhibit an overall energy conversion efficiency of approximately 0.16% under simulated solar irradiation (80 mW/cm(2)). Furthermore, we have investigated the surface network morphology of these film layers by atomic microscope (AFM) exploring strategies to improve the efficiency. (C) 2001 Elsevier Science B.V. All rights reserved.
Notes: Univ Linz, Linz Inst Organ Solar Cells LIOS, A-4040 Linz, Austria. Univ Limburg, Div Organ & Polymer Chem, Mat Res Inst, B-3590 Diepenbeek, Belgium. Johannes Kepler Univ, Inst Biophys, A-4040 Linz, Austria.Brabec, CJ, Univ Linz, Linz Inst Organ Solar Cells LIOS, Altenbergerstr 69, A-4040 Linz, Austria.
Keywords: photovoltaics; photoelectrochemical solar cells; dye-sensitized nc-TiO2; polythiophene and derivatives; thiophene-isothianaphthene copolymers; metal/semiconductor interfaces
Document URI: http://hdl.handle.net/1942/2754
ISSN: 0379-6779
e-ISSN: 0379-6779
DOI: 10.1016/S0379-6779(01)00395-2
ISI #: 000172967500003
Category: A1
Type: Journal Contribution
Validations: ecoom 2003
Appears in Collections:Research publications

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