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Title: Optical switching properties of RCo2 -type alloy hydride based solid state device
Authors: Srinivas, G.
Sankaranarayanan, V.
Ramaprabhu, S.
Keywords: Bioelectric phenomena; Electrochemical properties; Electrooptical devices; Indium; Indium alloys; Offshore oil well production; Optical switches; Solid electrolytes; Thick films; Tin; Titanium compounds; Active layers; Counter electrodes; Cyclic voltammetric measurements; Electro chemical hydrogenation; Electrochromic; Galvanostatic; Indium-tin oxide; Layer sequence; Nafion membranes; Optical-; Solid states; Switching properties; Transparent conducting; Switching
Issue Date: 2008
Citation: Journal of Applied Physics, 104(6), -
Abstract: The optical switching properties of a solid state device based on Ho0.6 Mm0.4 Co2 (HMC) alloy thin film as a switching active layer, water pretreated Nafion membrane as a solid electrolyte, and a transparent conducting indium tin oxide (ITO) as a counterelectrode are investigated. The device is simple and has a reduced layer sequence of HMC/Pd/Nafion/ITO. The reversible optical switching of this device has been studied during electrochemical galvanostatic charging-discharging as well as cyclic voltammetric measurements. Further, the optical switching durability of the device has been tested by repeated electrochemical hydrogenation-dehydrogenation, and the variations in the optical switching properties are discussed. The special characteristic of the device is that it can reversibly switch between a metallic reflecting state and a semiconducting transparent state by a small reversible applied current/voltage indicating the potential substitution for conventional electrochromic devices. � 2008 American Institute of Physics.
ISSN: 218979
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