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This coating makes glass into a solar panel

By Scott Jenkins |

A layered coating that acts as an organic semiconductor material allows building windows to generate electricity from direct, indirect, shaded, diffused and reflected sunlight, as well as from artificial light. Developer SolarWindow Technologies Inc. (Columbia, Md.; www.solarwindow.com) has designed and developed the system for ease-of-manufacturing, says John Conklin, CEO of SolarWindow. “Our organic semiconductor material can be adapted for application with many types of existing coating technologies, including spraying, rolling, and other application processes,” he explains. The SolarWindow coating consists of an organic polymer layer that contains light-harvesting organic molecules, along with elements of other species, sandwiched between electrically conducting layers. As each layer is coated onto the glass surface, it undergoes a curing step at ambient conditions. When finished, light can be absorbed by the organic coating, while the conducting layers govern a one-way flow of electrons using a proprietary Intra-Connection System that creates a discreet pattern of microscopic channels. These channels allow for the efficient transport of electricity within SolarWindow toward the surface of the glass. From there, the company’s…
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