Publication

Electrochromic switching with nanocrystalline TiO2 semiconductor films

Michael Graetzel, Nikolaos Vlachopoulos
1994
Conference Papers

Abstract

Forward biasing of transparent nanocryst. TiO2 (anatase) films in Li ion contg. org. electrolytes leads to rapid and reversible coloration due to electron accumulation and Li+ intercalation in the anatase lattice. Absorption of > 90% light throughout the visible and near IR can be switched on and off within a few seconds. The nanocryst. morphol. of the film plays a primordial role in enhancing the electrochromic process. Preliminary results from the redn. of a surface attached viologen mol. leading to a blue coloration of the film are reported.

Official source

https://infoscience.epfl.ch/entities/publication/d03e6631-d07c-428e-8a07-96293f54b630

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Michael Graetzel, Nikolaos Vlachopoulos
1994
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/d03e6631-d07c-428e-8a07-96293f54b630

About this result

Related concepts (27)

Electrochromism

Electrochromism is a phenomenon in which a material displays changes in color or opacity in response to an electrical stimulus. In this way, a smart window made of an electrochromic material can block specific wavelengths of ultraviolet, visible or (near) infrared light. The ability to control the transmittance of near-infrared light can increase the energy efficiency of a building, reducing the amount of energy needed to cool during summer and heat during winter.

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Electrochromic switching with nanocrystalline TiO2 semiconductor films

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