Black Silicon, which was developed and licensed to Natcore Technology based on intellectual property developed by the National Renewable Energy Laboratory (NREL), began undergoing major material conversions to reduce costs before it was commercialized.
Pushing new technologies into the PV market at a time of sharp declines in raw material prices has been challenging, so NREL has expanded its licensing agreement with this emerging company to use copper nanoparticles instead of gold or silver metal nanoparticles in the etching process.
Natcore president and chief executive officer Chuck Provini said: “Because copper metal is less expensive than precious metals, this new patent can help Natcore further reduce the cost of solar cells. This is our goal to cut costs and increase solar cell output. Another step."
“Black silicon†refers to the surface color of a silicon wafer after etching a nano-sized hole; black is caused by the lack of reflected light on the surface of a holey silicon wafer. Scientists at NREL and Natcore claim that the solar spectrum shows a near-infrared reflectance of 0.3%, which increases the conversion rate.
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