Title: Modelling the short-circuit current of polymer bulk heterojunction solar cells
Authors: Geens, W ×
Martens, T
Poortmans, J
Aernouts, T
Manca, J
Lutsen, L
Heremans, Paul
Borghs, S
Mertens, R
Van Der Zande, D #
Issue Date: Mar-2004
Publisher: Elsevier science sa
Series Title: Thin Solid Films vol:451 pages:498-502
Abstract: An analytical model has been developed to estimate the short-circuit current density of conjugated polymer/fullerene bulk heterojunction solar cells. The model takes into account the solvent-dependent molecular morphology of the donor/acceptor blend, which was revealed by transmission electron microscopy. Field-effect transistors based on single and composite organic layers were fabricated to determine values for the charge carrier mobilities of such films. These values served as input parameters of the model. It is shown that the difference in short-circuit current density that was measured between toluene-cast and chlorobenzene-cast conjugated polymer/fullerene photovoltaic cells (Appl. Phys. Lett. 78 (2001) 841) could be very well simulated with the model. Moreover, the calculations illustrate how increasing the hole and electron mobilities in the photoactive blend can improve the overall short-circuit current density of the solar cell. (C) 2003 Elsevier B.V. All rights reserved.
ISSN: 0040-6090
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors
× corresponding author
# (joint) last author

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