The authors wish to acknowledge N. Archuleta and E. Fish for their technical assistance. The work was supported by the Sandia LDRD program and by the Division of Material Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy under Contract no. DE-AC04-94AL85000. Supporting Information is available online from Wiley InterScience or from the author.
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Communication
Photocurrent Enhancement in Polythiophene- and Alkanethiol-Modified ZnO Solar Cells†
Article first published online: 27 NOV 2008
DOI: 10.1002/adma.200801082
Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Monson, T. C., Lloyd, M. T., Olson, D. C., Lee, Y.-J. and Hsu, J. W. P. (2008), Photocurrent Enhancement in Polythiophene- and Alkanethiol-Modified ZnO Solar Cells. Adv. Mater., 20: 4755–4759. doi: 10.1002/adma.200801082
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Publication History
- Issue published online: 16 DEC 2008
- Article first published online: 27 NOV 2008
- Manuscript Revised: 27 JUN 2008
- Manuscript Received: 18 APR 2008
Keywords:
- conjugated polymers;
- photovoltaic devices;
- self-assembled monolayers;
- semiconductors;
- solar cells
Photocurrent enhancement and improvement in solar cell performance are found when the interface between ZnO and polythiophene layers is modified with insulating alkanethiol self-assembled monolayers. This result is correlated with increased structural order in the polymer and interchain contributions in the photocurrent, suggesting that improved exciton diffusion or reduced electron-hole recombination can outweigh the impedance in electron transfer at the heterojunction interface.