Oxidize indium-tin

The Oxide of Indium - tin (or oxide of indium doped with tin or ITO for English name: Indium chock oxide ) is a mixture of Oxyde of indium (III) (In₂O₃) and of Oxyde of tin (IV) (SnO₂), in the typical mass proportion of 90% of the first and 10% of the second. This compound is colorless and transparent in thin layers, of yellowish with gray in mass form.

The principal characteristic of indium-tin oxide is its combination of electric Conductivité and optical Transparence. However, a compromise must be reached at the time of the film deposit, the increase in the concentration of charge carrier inducing a rise of conductivity of material, but a loss of its transparency.

The thin layers of ITO are generally deposited on surfaces by evaporation by electron beam, physical Dépôt by vapor phase or other techniques of Dépôt by vaporization.

Because of the cost and limited quantity available of indium, brittleness and lack of flexibility of the thin layers of ITO, and vacuum necessary and expensive for the deposit of the layers, of the alternatives are required; conducting coatings of Nanotube S of Carbone appear thus in the possible futurologies for this replacement. Layers of PEDOT or PEDOT-PSS are already used although they are degraded when they are exposed to radiations Ultraviolet your inter alia defects. Other possible substitutes are the Oxyde S of Zinc doped with the Aluminum.

Uses

The ITO are mainly used as conducting transparent coating for the screens with liquid crystals, the devices of flat panel displays, the plasma display screens, the touchscreens, like for applications related to the electronic Encres, OLED S, cell photovoltaic, anti-static deposits and of shielding against the electromagnetic interferences.

The ITO are also used for optical coatings, and more particularly of reflecting coverings for the Infrarouge (hot mirrors) for architectural, automobile glasses and of the lamps sodium vapor. Other uses include the gas-detector , the anti-reflecting Enrobages, and the reflecting of Bragg for Laser S VCSEL.

The thin wire in ITO used as strain gauges can operate until temperatures of 1400 °C and can be used in hostile environments like the gas turbines, the driving of planes or rocket.

External bonds

Spectroscopic studies off conducting metal oxides, with the many transparencies dedicated to the ITO.
Indium chock oxide thin film strain pledges for uses At elevated Thèse temperatures supported by Qing Luo in 2001 at the University of Rhode Island.

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