Effects of Nanostructure Geometry on Nanoimprinted Polymer Photovoltaics

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dc.contributor.ISNI0000 0003 5287 0481 (Zakhidov, AA)
dc.contributor.LCNA2005061514 (Hu, W)
dc.contributor.authorYang, Yien_US
dc.contributor.authorMielczarek, Kamilen_US
dc.contributor.authorAryal, Muktien_US
dc.contributor.authorZakhidov, Anvar A.en_US
dc.contributor.authorHu, Wenchuang (Walter)en_US
dc.contributor.utdAuthorZakhidov, Anvar A.en_US
dc.contributor.utdAuthorHu, Wenchuang (Walter)en_US
dc.date.issued2014-04-23
dc.descriptionWalter Hu is also known as Wenchuang Hu,en_US
dc.descriptionIncludes supplementary materialen_US
dc.description.abstractWe demonstrate the effects of nanostructure geometry on the nanoimprint induced poly(3-hexylthiophene-2,5-diyl) (P3HT) chain alignment and the performance of nanoimprinted photovoltaic devices. Out-of-plane and in-plane grazing incident X-ray diffraction techniques are employed to characterize the nanoimprint induced chain alignment in P3HT nanogratings with different widths, spacings and heights. We observe the dependence of the crystallite orientation on nanostructure geometry such that a larger width of P3HT nanogratings leads to more edge-on chain alignment while the increase in height gives more vertical alignment. Consequently, P3HT/6,6]-phenyl-C61-butyric-acid-methyl-ester (PCBM) solar cells with the highest density and aspect ratio P3HT nanostructures show the highest power conversion efficiency among others, which is attributed to the efficient charge separation, transport and light absorption.en_US
dc.description.sponsorship"This work is supported by NSF (grant no. ECCS-0901759), Welch Foundation Grant AT-1617, and DOE Phase II STTR program on “Tandem Organic Solar Cells” (grant no. DE-SC00003664)."en_US
dc.identifier.bibliographicCitationYang, Yi, Kamil Mielczarek, Mukti Aryal, Anvar Zakhidov, et al. 2014. "Effects of nanostructure geometry on nanoimprinted polymer photovoltaics." Nanoscale 6(13): 7476-7584en_US
dc.identifier.issn2040-3372en_US
dc.identifier.issue13en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4106
dc.identifier.volume6en_US
dc.publisherRSC Puben_US
dc.relation.urihttp://dx.doi.org/ 10.1039/c4nr01114g
dc.rights©2014 The Royal Society of Chemistry. This article may not be further made available or distributed.en_US
dc.sourceNanoscale
dc.subjectPoly(3-hexylthiophene-2,5-diyl)en_US
dc.subjectNanogratingsen_US
dc.subjectChains (Chemistry)en_US
dc.subjectNanostructuresen_US
dc.subjectPolymersen_US
dc.titleEffects of Nanostructure Geometry on Nanoimprinted Polymer Photovoltaicsen_US
dc.type.genrearticleen_US

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Hu, Wenchuang‏ (Walter)
Zakhidov, Anvar A.