Comparing plasmonic electrodes prepared by electron-beam lithography and electrochemical reduction of an Au (iii) salt: application in active plasmonic devices

Abstract : This work describes two different methods for obtaining electrodes covered with gold nanoparticles: electron-beam lithography and electroreduction of an Au (III) salt by chronoamperometry. Localized surface plasmon resonances of these different electrodes have been compared. In a second step, these plasmonic AuNP electrodes were covered with an ultrathin organic film of bisthienylbenzene which displays a reversible voltage-dependent switch between conducting and insulating states. The effect of this conductance switch on the plasmonic properties of the AuNPs has been studied.
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Van-Quynh Nguyen, Delphine Schaming, Pascal Martin, Jean-Christophe Lacroix. Comparing plasmonic electrodes prepared by electron-beam lithography and electrochemical reduction of an Au (iii) salt: application in active plasmonic devices. Advances in Natural Sciences : Nanoscience and Nanotechnology, IOP Publishing, 2016, 7 (1), pp.015005. ⟨10.1088/2043-6262/7/1/015005⟩. ⟨hal-01822420⟩

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