ELECTROCHEMICAL DEVICE WITH ELECTROCONTROLLABLE OPTICAL TRANSMISSION AND/OR ENERGY-RELATED PROPERTIES

• Main Authors: VERGER, ARNAUD, VALENTIN, EMMANUEL, LAMINEISS
• Format: Patent
• Language: English; French; German
• Published: 16.10.2013
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The present invention relates to an electrochemical device (1) having electrically controllable optical and/or energy properties, comprising a first electrode coating (4), a second electrode coating (12) and an electrochemically active medium (6, 10) capable of switching reversibly between a first state and a second state of different optical transmission by supplying electrical power to the first electrode coating (4) and to the second electrode coating (12), the material of the electrode coatings being based on a metal oxide having a light transmission factor D65 equal to or greater than 60%, preferably equal to or greater than 80%, and having a concentration of free charge carriers such that the material has an absorption spectrum satisfying (lambda-Deltalambda/2)>=1.8 mum, where lambda is the plasma wavelength of the material and Deltalambda is the full width at half maximum of the absorption spectrum at the plasma wavelength.