Publication

Electrochromic or photoelectrochromic device

1997
Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrochromic or photoelectrochromic device suitable particularly for reversible storage and display of data and for control of light transmittance. ;SOLUTION: In the device, at least one of electrodes carries a coating constituted of at least one nanocrystalline layer of at least one semiconductive material, having a roughness factor equal to at least 20, and a monolayer of electrically active molecules or of an electrically active polymer, said monolayer being adsorbed on the surface of this coating. The device contains at least one auxiliary electrically active compound, possibly dissolved in an electrolyte, having the property of being capable of being oxidized or reduced in a reversible manner. ;COPYRIGHT: (C)2007,JPO&INPIT

Official source

https://infoscience.epfl.ch/entities/publication/555e54f4-462d-487a-a990-df2512e3a6e4

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1997
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/555e54f4-462d-487a-a990-df2512e3a6e4

About this result

Related concepts (32)

Energy storage

Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential, electricity, elevated temperature, latent heat and kinetic. Energy storage involves converting energy from forms that are difficult to store to more conveniently or economically storable forms.

Hydrogen storage

Several methods exist for storing hydrogen. These include mechanical approaches such as using high pressures and low temperatures, or employing chemical compounds that release H2 upon demand. While large amounts of hydrogen are produced by various industries, it is mostly consumed at the site of production, notably for the synthesis of ammonia. For many years hydrogen has been stored as compressed gas or cryogenic liquid, and transported as such in cylinders, tubes, and cryogenic tanks for use in industry or as propellant in space programs.

Transmittance

Transmittance of the surface of a material is its effectiveness in transmitting radiant energy. It is the fraction of incident electromagnetic power that is transmitted through a sample, in contrast to the transmission coefficient, which is the ratio of the transmitted to incident electric field. Internal transmittance refers to energy loss by absorption, whereas (total) transmittance is that due to absorption, scattering, reflection, etc.

Related publications (23)

Electrochromic or photoelectrochromic device

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Optimizing reversible solid oxide cell technology for long-term energy storage in Europe’s decarbonized frameworks

Towards implantable supercapacitors with high longevity

Sedimentation and Nonlinear Trapping in Texas Reservoirs Identified Using Remote Sensing and Bathymetric Survey Records