Structure-property-performance relationships for organic bulk heterojunction solar cells (EPSRC)
Project dates: 1 Apr 2009 – 31 Mar 2012
This is a collaboration project, between Imperial College London and the National Physical Laboratory, funding an EPSRC postdoctoral research assistant in organic solar cells.
The main aim of the project is to develop a systematic, microscopic understanding of the relationship between nanostructure and optoelectronic properties of organic semiconductors and to correlate it with the device functionality and performance. Specific objectives include: (1) to determine three-dimensional thin film structures of organic blends, (2) to examine molecular orientation in these organic thin films, (3) to correlate thin film structure and molecular orientation to their optoelectronic properties of organic blend PV devices, and (4) to develop advanced nanoscale Raman spectroscopy.
NPL staff involved with the project
Fernando Castro
Wing Chung Tsoi
Craig Murphy
Collaborations
- Imperial College London
Publications
- Quantitative nanoscale surface voltage measurement on organic semiconductor blends
A. Cuenat, A. Muniz-Piniella, M. Munoz-Rojo, W. C. Tsoi, C. E. Murphy
Nanotechnology, 23, 045703 (2012) - Surface and subsurface morphology of operating nanowire:fullerene solar cells revealed by photoconductive-AFM
W. C. Tsoi, P. G. Nicholson, J. S. Kim, D. Roy, T. Burnett, C. Murphy, J. Nelson, D. D. C. Bradley, J. S. Kim and F. A. Castro
Energy & Environmental Science, 4, pages 3646-3651 (2011) - Effect of crystallisation on the electronic energy levels and thin film morphology of P3HT:PCBM blends
W. C. Tsoi, S. J. Spencer, L. Yang, A. M. Ballantyne, P. G. Nicholson, A. Turnbull, A. G. Shard, C. E. Murphy, D. D. C. Bradley, J. Nelson, and J. S. Kim
Macromolecules, 44 (8), pages 2944–2952 (2011) - The nature of in-plane skeleton Raman modes of P3HT and their correlation to the degree of molecular order in P3HT:PCBM blend thin films
W. C. Tsoi, D. T. James, J. S. Kim, P. G. Nicholson, C. E. Murphy, D. D. C. Bradley, J. Nelson and J. S. Kim
J. Am. Chem. Soc., 133, page 9834 (2011)
Conferences and Presentations
- Effect of Crystallisation on Electronic Energy levels and Thin Film Morphology of P3HT:PCBM Blends
W. C. Tsoi, S. J. Spencer, C. E. Murphy, D. D. C. Bradley,J. Nelson and J. S. Kim
International Conference on Science and Technology of Synthetic Metals (ICSM) at Kyoto, Japan, July 2010 - Surface and subsurface morphology of operating nanowire:fullerene solar cells revealed by photoconductive-AFM
W. C. Tsoi, P. G. Nicholson, J. S.Kim, D. Roy, T. L. Burnett, C. E. Murphy, J. Nelson, D. D. C. Bradley, J. S. Kim, F. A. Castro
IOP Perspectives in Materials and Technologies for Photovoltaics (Manchester, UK) - Probing the internal nanomorphology in real-working bulk-heterojunction solar cells
W. C. Tsoi, P. Nicholson, D.Roy, C. Murphy, J. S. Kim, F. A. Castro
SPIE 2011 (San Diego, USA)