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Solid‐State Organic/Inorganic Hybrid Solar Cells Based on Poly(octylthiophene) and Dye‐Sensitized Nanobrookite and Nanoanatase TiO 2 Electrodes
Author(s) -
LancelleBeltran Emmanuelle,
Prené Philippe,
Boscher Christophe,
Belleville Philippe,
Buvat Pierrick,
Lambert Sébastien,
Guillet François,
Marcel Corinne,
Sanchez Clément
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200701033
Subject(s) - brookite , dye sensitized solar cell , anatase , mesoporous material , energy conversion efficiency , chemical engineering , chemistry , crystallite , solar cell , polythiophene , photoactive layer , electrode , nanotechnology , polymer solar cell , photocatalysis , materials science , conductive polymer , optoelectronics , organic chemistry , crystallography , catalysis , engineering , electrolyte
The performance of solid‐state hybrid dye‐sensitized solar cells (DSSC), based on polythiophene polymers as hole‐transporting materials, have been compared by varying TiO 2 mesoporous n‐semiconductor film microstruture parameters such as the crystalline phase (brookite and anatase), initial crystallite size and sintering temperature conditions. For both crystalline phases a rise in the TiO 2 mesoporous film curing temperature from 450 °C to 600 °C produces a twofold increase in the energy conversion efficiency leading to a significant current density improvement. When using the same solar‐cell preparation process and a 500‐nm‐thick photoactive layer, the cells made up of brookite and anatase mesoporous materials give a reproducible solar energy conversion efficiency that reaches 0.48 % and 0.74 %, respectively (at standard AM 1.5).(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)