At $1 per Watt, the iTunes of Solar Energy Has Arrived | SolveClimate.com Annotated
Nanosolar has developed proprietary process technology that makes it possible to produce 100x thinner solar cells 100x faster.
Nanosolar - 7 Areas of Innovation Annotated
As opposed to using slow and expensive high-vacuum based thin-film deposition processes, we developed a proprietary ink (1) to allow us to use much simpler and higher-yield printing (2) for depositing the solar cell's semiconductor.
We use a highly conductive yet low-cost foil as a substrate (3), which allows us to avoid the need to separately deposit an expensive bottom electrode layer (as required for a non-conductive substrate such as glass).
The foil furthermore allows us to
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