Electrochromic-Photovoltaic Film for Light-Sensitive Control of Optical Transmittance

A variable transmittance optical component includes an electrochromic material and a photovoltaic device-type thin film solar cell deposited in a tandem type, monolithic single coating over the component. A bleed resistor of a predetermined value is connected in series across the electrochromic material and photovoltaic device controlling the activation and deactivation of the electrochromic material. The electrical conductivity between the electrochromic material and the photovoltaic device is enhanced by interposing a transparent electrically conductive layer.

Patents:
US 5,377,037   [MORE INFO]

Inventor(s): Richard S. Crandall; C. Edwin Tracy; Howard M. Branz

Type of Offer: Licensing



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