AWARDSSHORTLIST
to the solar cell manufacturing process. The company’s roll-to-roll manufacturing style has been utilized in newspaper printing for generations, and their low- cost solution processing technique is similar to that of inkjet printing. In combining these proven processes, Solexant has significantly reduced the operating and capital expenditures associated with solar manufacturing.
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At less than 1 micron thick, Nanocrystal Solar Cells are approximately 200 times thinner than traditional solar cells, equating to major savings in materials costs alone. In utilizing a roll-to-roll manufacturing technique, Solexant’s technology eliminates the need for expensive clean rooms and high-tech machinery. Furthermore, the temperature required to process Nanocrystal Solar Cells is only 100°C to 350°C, versus the 400°C to 1,400°C needed to for conventional cells, and more than 700°C for other types of thin film. Another advantage of Nanocrystal Solar Cells comes from their above average
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processing speed. The ability to process the nanocrystal films in a solution allows for high-speed deposition methods similar to inkjet printing. This solution- processing is not only cheaper than the traditional vapor-phase deposition in terms of capital equipment costs, it can also reach production speeds of 10 meters per minute - more than 10 times faster than the competition.
Solexant Corp.’s Nanocrystal Solar Cells and Modules are poised to become the long-lasting, low-cost preference of the photovoltaics industry. Improving upon technology originally developed at
Lawrence Berkeley National Laboratory, the cells are manufactured with an inexpensive roll-to-roll technique, much like newspaper rolling off the presses. What’s more, Nanocrystal Solar Cells are solution-processed, a system that is less energy intensive and up to 10 times faster than standard deposition methods. Overall, Nanocrystal Solar technology enables lower manufacturing and balance of systems costs, making it possible to bring the cost of solar manufacturing down to about 50 cents per watt - approximately one-fifth the cost of traditional solar cells - while maintaining competitive efficiency levels.
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www.solar-pv-management.com Issue V 2010
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