This work is supported by the Council for Chemical Sciences of the Netherlands Organization for Scientific Research (CW-NWO) in the Pionier program and forms part of the research program of the Dutch Polymer Institute (DPI, projects 324, 325). We thank the Philips Research Laboratories in Eindhoven for the generous gift of MDMO-PPV.
Hybrid Solar Cells Using a Zinc Oxide Precursor and a Conjugated Polymer†
Article first published online: 22 AUG 2005
Copyright © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Functional Materials
Volume 15, Issue 10, pages 1703–1707, October, 2005
How to Cite
Beek, W. J. E., Slooff, L. H., Wienk, M. M., Kroon, J. M. and Janssen, R. A. J. (2005), Hybrid Solar Cells Using a Zinc Oxide Precursor and a Conjugated Polymer. Adv. Funct. Mater., 15: 1703–1707. doi: 10.1002/adfm.200500201
- Issue published online: 28 SEP 2005
- Article first published online: 22 AUG 2005
- Manuscript Accepted: 8 APR 2005
- Manuscript Received: 18 OCT 2004
- Conjugated polymers;
- Solar cells;
- Zinc oxide
We describe a new method towards bulk-heterojunction hybrid polymer solar cells based on composite films of zinc oxide (ZnO) and a conjugated polymer poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylene vinylene] (MDMO-PPV). Spin-coating diethylzinc as a ZnO precursor and MDMO-PPV from a common solvent at 40 % humidity and annealing at 110 °C provides films in which crystalline ZnO is found to be intimately mixed with MDMO-PPV. Photoluminescence and photoinduced spectroscopy demonstrate that photoexcitation of these hybrid composite films results in a fast and long-lived charge transfer from the polymer as a donor to ZnO as ato be obtained n acceptor. Using the ZnO-precursor method, hybrid polymer solar cells have been made with an estimated air-mass of 1.5 (AM 1.5) energy conversion efficiency of 1.1 %. This new method represents a fivefold improved performance compared to similar hybrid polymer solar cells based on amorphous TiO2.