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We have designed a high performance transparent conductor using silver and aluminium stacked films perforated with hexagonally periodic subwavelength holes which are close to the lattice period. A broadband (λ of 400-800 nm) enhanced transmission is achieved by strong coupling of surface plasmons and propagating modes through the holes. Optical and electrical modeling predict a good combination of transparency and sheet resistance (e.g. ∼85% T and ∼2.4 Ω sq(-1)). Preliminary characterization results of the samples made via nanosphere lithography will also be presented.
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Wu et al. (2014) studied this question.
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