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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/11443

Title: Organic solar cells based on nanoporous P3HT obtained from self-assembled P3HT:PS templates
Authors: Vohra, Varun
Campoy-Quiles, Mariano
Garriga, Miquel
Murata, Hideyuki
Keywords: Nanoporous P3HT
Organic Solar Cells
Issue Date: 2012-07-30
Publisher: Royal Society of Chemistry
Magazine name: Journal of Materials Chemistry
Volume: 22
Number: 37
Start page: 20017
End page: 20025
DOI: 10.1039/C2JM32639F
Abstract: We demonstrate a solution-based method to create vertical nanoporous structures of semiconducting polymer poly(3-hexylthiophene) over large areas by taking advantage of the spontaneous phase segregation between poly(3-hexylthiophene) and polystyrene deposited from a single solution and, in a second step, removing polystyrene by selectively dissolving it. Nanoporous films with pore diameters which can be tuned down to 120 nm are produced by varying the composition. The potential of the method is further demonstrated by fabricating fully operational solar cells after deposition of [6,6]-phenyl-C61-butyric acid methyl ester from an adequate solvent. For optimized conditions, the devices based on nanostructured thin films exhibit enhanced efficiencies with respect to graded bilayers and bulk heterojunction organic photovoltaic devices. We relate the increase in fill factor observed in the nanostructured devices to changes in the orientation of poly(3-hexylthiophene) chains induced by nanoconfinement and self assembly with polystyrene resulting from this simple solution process without any use of elaborated chemistry or soft lithography.
Rights: Copyright (C) 2012 Royal Society of Chemistry. Varun Vohra, Mariano Campoy-Quiles, Miquel Garriga and Hideyuki Murata, Journal of Materials Chemistry, 22(37), 2012, 20017-20025. http://dx.doi.org/10.1039/C2JM32639F - Reproduced by permission of The Royal Society of Chemistry
URI: http://hdl.handle.net/10119/11443
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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