Nanoscale Morphology of High-Performance Polymer Solar Cells
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- 2 March 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 5 (4) , 579-583
- https://doi.org/10.1021/nl048120i
Abstract
Transmission electron microscopy and electron diffraction are used to study the changes in morphology of composite films of poly(3-hexylthiophene) (P3HT) and a methanofullerene derivative (PCBM) in bulk heterojunction solar cells. Thermal annealing produces and stabilizes a nanoscale interpenetrating network with crystalline order for both components. P3HT forms long, thin conducting nanowires in a rather homogeneous, nanocrystalline PCBM film. Both the improved crystalline nature of films and increased but controlled demixing between the two constitutes therein after annealing explains the considerable increase of the power conversion efficiency observed in these devices.Keywords
This publication has 27 references indexed in Scilit:
- Conjugated Polymer Photovoltaic CellsChemistry of Materials, 2004
- Influence of nanomorphology on the photovoltaic action of polymer–fullerene compositesNanotechnology, 2004
- Organic solar cells: An overviewJournal of Materials Research, 2004
- Organic photovoltaics: technology and marketSolar Energy Materials and Solar Cells, 2004
- Efficient Methano[70]fullerene/MDMO‐PPV Bulk Heterojunction Photovoltaic CellsAngewandte Chemie International Edition in English, 2003
- One-Dimensional Aggregation of Regioregular PolyalkylthiophenesNano Letters, 2003
- Hybrid Nanorod-Polymer Solar CellsScience, 2002
- 2.5% efficient organic plastic solar cellsApplied Physics Letters, 2001
- Two-dimensional charge transport in self-organized, high-mobility conjugated polymersNature, 1999
- Efficient photodiodes from interpenetrating polymer networksNature, 1995