Castro, F A; Nuesch, F*; Walder, C*; Hany, R* (2012) Challenges found when patterning semiconducting polymers with electric fields for organic solar cell applications. J. Nanomater.. 478296

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Abstract

A material-independent, contactless structuring method of semiconducting organic materials for the fabrication of interface-enhanced bilayer solar cells is not available so far. Patterning of thin films using electrohydrodynamic instabilities possesses many desired characteristics, and has convincingly been used as a simple method to structure and replicate patterns of non-conducting polymers on sub-micrometer length scales. Here, we report attempts to structure poly(p-phenylene-vinylenes) in a similar way. We found that thin films of MEH-PPV and MDMO-PPV could not be destabilized at all in the limited accessible range of the experimental parameters, set by the delicate chemical of these materials. We discuss failure origins and present possible loopholes for the patterning of semiconducting polymers using electric fields.

Item Type:	Article
Keywords:	patterning, polymer, photovoltaics, electrohydrodynamic patterning
Subjects:	Advanced Materials Advanced Materials > Photovoltaics
Identification number/DOI:	10.1155/2012/478296
Last Modified:	02 Feb 2018 13:14
URI:	http://eprintspublications.npl.co.uk/id/eprint/5528

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