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    Solution processed zinc oxide nanopyramid/silver nanowire transparent network films with highly tunable light scattering properties

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    Type
    Article
    Authors
    Mehra, Saahil
    Christoforo, Mark G.
    Peumans, Peter
    Salleo, Alberto
    KAUST Grant Number
    KUS-C1-015-21
    Date
    2013
    Permanent link to this record
    http://hdl.handle.net/10754/599660
    
    Metadata
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    Abstract
    Metal nanowire transparent networks are promising replacements to indium tin oxide (ITO) transparent electrodes for optoelectronic devices. While the transparency and sheet resistance are key metrics for transparent electrode performance, independent control of the film light scattering properties is important to developing multifunctional electrodes for improved photovoltaic absorption. Here we show that controlled incorporation of ZnO nanopyramids into a metal nanowire network film affords independent, highly tunable control of the scattering properties (haze) with minimal effects on the transparency and sheet resistance. Varying the zinc oxide/silver nanostructure ratios prior to spray deposition results in sheet resistances, transmission (600 nm), and haze (600 nm) of 6-30 Ω –¡$^{-1}$, 68-86%, and 34-66%, respectively. Incorporation of zinc oxide nanopyramid scattering agents into the conducting nanowire mesh has a negligible effect on mesh connectivity, providing a straightforward method of controlling electrode scattering properties. The decoupling of the film scattering power and electrical characteristics makes these films promising candidates for highly scattering transparent electrodes in optoelectronic devices and can be generalized to other metal nanowire films as well as carbon nanotube transparent electrodes. © 2013 The Royal Society of Chemistry.
    Citation
    Mehra S, Christoforo MG, Peumans P, Salleo A (2013) Solution processed zinc oxide nanopyramid/silver nanowire transparent network films with highly tunable light scattering properties. Nanoscale 5: 4400. Available: http://dx.doi.org/10.1039/c3nr00863k.
    Sponsors
    The authors gratefully acknowledge Prof. M. D. McGehee for assistance with optical characterization equipment and financial support from the Center for Advanced Molecular Photovoltaics (Award no. KUS-C1-015-21), made by King Abdullah University of Science and Technology (KAUST).
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    Nanoscale
    DOI
    10.1039/c3nr00863k
    PubMed ID
    23575765
    ae974a485f413a2113503eed53cd6c53
    10.1039/c3nr00863k
    Scopus Count
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