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dc.contributor.authorLiu, Xinfengen
dc.contributor.authorWu, Boen
dc.contributor.authorZhang, Qingen
dc.contributor.authorYip, Jing Ngeien
dc.contributor.authorYu, Guannanen
dc.contributor.authorXiong, Qihuaen
dc.contributor.authorMathews, Nripanen
dc.contributor.authorSum, Tze Chienen
dc.identifier.citationLiu, X., Wu, B., Zhang, Q., Yip, J. N., Yu, G., Xiong, Q., et al. (2014). Elucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cells. ACS nano, 8(10), 10101–10110.en
dc.description.abstractThe origins of performance enhancement in hybrid plasmonic organic photovoltaic devices are often embroiled in a complex interaction of light scattering, localized surface plasmon resonances, exciton–plasmon energy transfer and even nonplasmonic effects. To clearly deconvolve the plasmonic contributions from a single nanostructure, we herein investigate the influence of a single silver nanowire (NW) on the charge carriers in bulk heterojunction polymer solar cells using spatially resolved optical spectroscopy, and correlate to electrical device characterization. Polarization-dependent photocurrent enhancements with a maximum of ∼36% over the reference are observed when the transverse mode of the plasmonic excitations in the Ag NW is activated. The ensuing higher absorbance and light scattering induced by the electronic motion perpendicular to the NW long axis lead to increased exciton and polaron densities instead of direct surface plasmon-exciton energy transfer. Finite-difference time-domain simulations also validate these findings. Importantly, our study at the single nanostructure level explores the fundamental limits of plasmonic enhancement achievable in organic solar cells with a single plasmonic nanostructure.en
dc.relation.ispartofseriesACS nanoen
dc.rights© 2014 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by ACS Nano, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].en
dc.subjectDRNTU::Engineering::Electrical and electronic engineering::Nanoelectronicsen
dc.titleElucidating the localized plasmonic enhancement effects from a single Ag nanowire in organic solar cellsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.contributor.schoolSchool of Materials Science & Engineeringen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.contributor.researchEnergy Research Institute @ NTU (ERI@N)en
dc.description.versionAccepted versionen
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