Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 26, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3458809
Keywords
nanofabrication; nanostructured materials; photovoltaic cells; polymer blends; solar cells
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Funding
- CeNS
- Deutsche Forschungsgemeinschaft (DFG) via the Cluster of Excellence [EXC-4]
- DAAD/British Council
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The morphology in organic photovoltaics plays a key role in determining the device efficiency. We propose a method to fabricate bilayer devices with controlled nanostructured interfaces by combining nanoimprinting and lamination techniques. This technique allows us to achieve a network structure of donor-acceptor material with a similar to 80 nm periodicity and similar to 40 nm width. These structures have an abrupt interface between the donor and acceptor materials and show an increased effective interfacial area and photovoltaic performance compared to bilayer solar cells. In contrast to blend films, they will allow an in depth analysis of the influence of morphology on interfacial physical processes. (C) 2010 American Institute of Physics. [doi:10.1063/1.3458809]
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