Award-Winning Etching Process Cuts Solar Cell Costs (Fact Sheet)

National Renewable Energy Laboratory (U.S.)

关键词: Black Silicon;    14 Solar Energy Solar Cell;    Diffuse Light;    Howard Branz;    Gold;   

DOI  :  10.2172/1090151
RP-ID  :  NREL/FS-6A42-59020
RP-ID  :  AC36-08GO28308
RP-ID  :  1090151

美国|英语

来源: UNT Digital Library

【 摘 要 】

NREL scientists have invented the 'black silicon' nanocatalytic wet-chemical etch, an inexpensive, one-step process that literally turns the solar cells black, allowing them to absorb more than 98% of incident sunlight. The process costs just a few cents per watt of solar-cell power-producing capacity. Increases in manufactured cell efficiencies of up to 0.8% are possible because of the reduced reflectance of black silicon. This would reduce silicon solar module costs by $5-$10 per module.