electrochromic

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electrochromic

The ability of a material to transmit light due to a change in electrical current. The optical properties are reversible, and the material reverts to its original state once the electrical current is removed. As such, electrochromic materials are the primary choice for visual devices, such as smart windows, light shutters, information displays, reflectance mirrors, and thermal radiators. In green architecture, electro-chromic materials are mainly used in “smart windows” for their energy efficiency and thermal comfort. The transparency/opacity level is adjusted by an applied voltage. See also: Smart materials
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References in periodicals archive ?
Pikulev, "Internal electrochromism in vanadium pentoxide xerogel films," Materials Science in Semiconductor Processing, vol.
They studied their complexes with various metal ions and reported visible electrochromism for ruthenium-bipyridine complexes [11].
Gallo, "Resolution of electron and proton transfer events in the electrochromism associated with quinone reduction in bacterial reaction centers," Photosynthesis Research, vol.
Most of the films investigated showed reversible color changes (electrochromism) during the redox process and CV cycling.
It is disappointing that the authors do not extend their treatment into giving guidance and recommendations for design (which they perhaps might have felt was beyond their self-set brief), and their reference to new technologies is scant, and sometimes wrong (for example in relation to silica aerogel and electrochromism).
Other areas such as "electrochromism" (color changes caused by electricity) are also emerging.
Studies of the molecular mechanisms that result in potential-dependent optical properties have produced evidence supporting three mechanisms (for different dyes): dipole rotation, electrochromism, and a potential-sensitive monomer-dimer equilibrium.
This way, metallic properties arise such as optical, magnetic, electrochromism and new paths for light emission, to mention the most relevant.
These films have potential applications in the fields of photoelectrochemistry [12,13], photocatalysis [7,14-16], electrocatalysis [17,18], photochromism [18], sensors [9,19], and electrochromism [18,20].
Kugler, "Switchable optical polarizer based on electrochromism in stretch-aligned polyani line," Applied Physics Letters, vol.83, no.7, pp.1307-1309, 2003.
Unlike inorganic compounds, intrinsically conducting polymers are more attractive electrochromic materials because of their relatively low-optical switch potentials, fast response, and colorful electrochromism (3), (4).