Electrochromic-photovoltaic film for light-sensitive control of optical transmittance

Title: Electrochromic-photovoltaic film for light-sensitive control of optical transmittance

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Abstract

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. 5 figures.

Inventors:: Branz, H M; Crandall, R S; Tracy, C E

Issue Date:: 1994-12-27

Research Org.:: National Renewable Energy Lab. (NREL), Golden, CO (United States); Midwest Research Institute, Kansas City, MO (United States)

OSTI Identifier:: 6632032

Patent Number(s):: 5377037 A

Application Number:: PPN: US 7-973171

Assignee:: Midwest Research Institute, Kansas City, MO (United States)

DOE Contract Number:: AC02-83CH10093

Resource Type:: Patent

Resource Relation:: Patent File Date: 6 Nov 1992

Country of Publication:: United States

Language:: English

Subject:: 14 SOLAR ENERGY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; WINDOWS; ELECTROCHROMISM; PHOTOVOLTAIC CELLS; ELECTRIC CONDUCTIVITY; LIGHT TRANSMISSION; PROCESS CONTROL; CONTROL; DIRECT ENERGY CONVERTERS; ELECTRICAL PROPERTIES; ELECTRO-OPTICAL EFFECTS; OPENINGS; PHOTOELECTRIC CELLS; PHYSICAL PROPERTIES; 140501* - Solar Energy Conversion- Photovoltaic Conversion; 320107 - Energy Conservation, Consumption, & Utilization- Building Systems- (1987-)

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                    Branz, H M, Crandall, R S, and Tracy, C E. Electrochromic-photovoltaic film for light-sensitive control of optical transmittance.  United States: N. p., 1994. 
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                    Branz, H M, Crandall, R S, & Tracy, C E. Electrochromic-photovoltaic film for light-sensitive control of optical transmittance.  United States.

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                    Branz, H M, Crandall, R S, and Tracy, C E. Tue .  
        "Electrochromic-photovoltaic film for light-sensitive control of optical transmittance".  United States.

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@article{osti_6632032,

  title        = {Electrochromic-photovoltaic film for light-sensitive control of optical transmittance},

  author       = {Branz, H M and Crandall, R S and Tracy, C E},

  abstractNote = {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. 5 figures.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1994},

  month        = {12}

}

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