Journal Article


Jonathan Nesbit Coleman



zno condensed matter physics organic photovoltaics solar cell zinc oxide transparent films nanoparticles electrode

Ag-nanowire films coated with ZnO nanoparticles as a transparent electrode for solar cell (2011)

Abstract We demonstrate that solution-processible silver-nanowire films coated with zinc-oxide-nanoparticles (ZnO-NPs) can be used as transparent electrodes in organic photovoltaic devices. The ZnO-NP coating acts as electron extraction layer and as encapsulating agent, protecting the wires from oxidation and improving their mechanical stability. Scanning photocurrent microscopy showed photocurrent generation to be more efficient at the active material surrounding the wires. Ultra-violet illumination as present in the solar spectrum was found to enhance photocurrent by improving the ZnO in-layer conductivity through the photoconductive effect. Inverted polythiophene:fullerene devices using ZnO-NP coated silver-nanowires or indium-tin-oxide as transparent electrode reached power conversion efficiencies of 2.4%.
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Jonathan Nesbit Coleman

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Jonathan Coleman
Trinity College Dublin
Total Publications: 217