Applied Physics Letters · 1990 · 21 citations · 5 references
Natural SciencesMaterials EngineeringMaterials ScienceMaterials ChemistryOptical MaterialsThin FilmsOptical Thin FilmsPhotochemistryPhotoelectrochemical MaterialsPhotoelectrochemistryThin Film Electrical PropertiesThin Film Optical PropertiesAmorphous Thin FilmsElectrical PropertiesElectrical Properties AnalysisOptical Properties Of Amorphous MaterialsThin Film ColorationTransition Metal Oxide Electrochromics
It is shown that thin amorphous films of WO3 exhibit a photoinduced reversible coloration in an electrochemical cell of the form quartz/semitransparent Au/ethanol/WO3/In2O3-coated glass. From measurements of the optical and electrical properties of the films, the coloration is attributed to the formation of HxWO3, presumably due to a photointercalation of protons into WO3 films. This effect is potentially useful for storage, learning, and modulation of two-dimensional optical information.
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Optical implementation of the Hopfield model
Nabil H. Farhat, Demetri Psaltis, A. Prata et al. · Applied Optics · 1985 · 600 citations · Full text