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Title: Ultrafine gold nanowire networks as plasmonic antennae in organic photovoltaics
Authors: Oo, Than Z.
Mathews, Nripan
Xing, Guichuan
Wu, Bo
Xing, Bengang
Wong, Lydia Helena
Sum, Tze Chien
Mhaisalkar, Subodh Gautam
Keywords: DRNTU::Science::Chemistry::Physical chemistry
Issue Date: 2012
Source: Oo, T. Z., Mathews, N., Xing, G., Wu, B., Xing, B., Wong, L. H., et al. (2012). Ultrafine gold nanowire networks as plasmonic antennae in organic photovoltaics. The journal of physical chemistry C, 116(10), 6453-6458.
Series/Report no.: The journal of physical chemistry C
Abstract: Solution-processed ultrafine gold nanowires (Au-NWs) have been exploited as plasmonic antennae in organic P3HT:PCBM photovoltaic cells. The careful reduction of the spacer layer thickness which allows the evanescent field to be extended into the photoactive layer and the geometry of the Au-NWs bands which favors the enhanced scattering collectively result in an increased short-circuit current density by 23.2%. The exact nature of the plasmonic effect in Au-NWs incorporated P3HT system and the critical role played by the spacer layer were studied through optical and time-resolved photoluminescence spectroscopy. The improved photocurrent in the Au-NWs integrated devices is due to an enhanced absorption in the photoactive layer which is contributed from an increased plasmon excitation field and far-field scattering of Au-NWs.
DOI: 10.1021/jp2099637
Fulltext Permission: none
Fulltext Availability: No Fulltext
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