Development of highly transparent Pd-coated Ag nanowire electrode for display and catalysis applications
By Ali Canlier and Umit Volkan Ucak and Hakan Usta and Changsoon Cho and Jung-Yong Lee and Unal Sen and Murat Citir
Published in Applied Surface Science
NULL
2015
Abstract
Ag nanowire transparent electrode has excellent transmittance (90%) and sheet resistance (20 ?/sq), yet there are slight drawbacks such as optical haze and chemical instability against aerial oxidation. Chemical stability of Ag nanowires needs to be improved in order for it to be suitable for electrode applications. In our recent article, we demonstrated that coating Ag nanowires with a thin layer of Au through galvanic exchange reactions enhances the chemical stability of Ag nanowire films highly and also helps to obtain lower haze. In this study, coating of a thin Pd layer has been applied successfully onto the surface of Ag nanowires. A mild Pd complex oxidant [Pd(en)2](NO3)2 was prepared in order to oxidize Ag atoms partially on the surface via galvanic displacement. The mild galvanic exchange allowed for a thin layer (1
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