Development of a new self-powered electrochromic device for light modulation without external power supply

作者: C. Bechinger , B.A. Gregg

DOI: 10.1016/S0927-0248(98)00092-0

关键词: Battery (electricity)Electricity generationShort circuitFabricationElectrochromismOptoelectronicsPhotovoltaic systemSolar cellBlocking (radio)OpticsMaterials science

摘要: Despite considerable improvements within the last decades, electrochromic (EC) window coatings are still too expensive to be applied in buildings on a large scale. Beside manufacturing costs, wiring costs have added which may exceed fabrication expenses of window. Therefore, self-powered windows been considered, where semi-transparent photovoltaic (PV) cell provides power activate an system deposited top solar cell. The whole PVEC device consists up eight layers must scales without short circuits or other failures. Recently, we came with much simpler idea generation and properties combined rather than just as case now is obtained by deposition only three highly transparent bleached state. Exposing it sunlight completing external circuit can colored few minutes, reducing transmission about 40%. Bleaching occurs either spontaneously blocking induced small rechargeable battery incorporated charged from when exposed sunlight.

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