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

关键词: SOLAR CELL;    ANTIREFLECTION;    ETCH;    BLACK SILICON;    NANOCATALYTIC WET-CHEMICAL ETCH;    GOLD;    SILVER;    NANOPARTICLE;    ANTIREFLECTIVE COATING;    NATCORE TECHNOLOGY INC.;    RED BANK;    NEW JERSEY;    ANGLE OF INCIDENCE;    DIFFUSE LIGHT;    R&D 100 AWARD;    HOWARD BRANZ;    Solar Energy - Photovoltaics;   

DOI  :  10.2172/1090151
RP-ID  :  NREL/FS-6A42-59020
PID  :  OSTI ID: 1090151

学科分类：再生能源与代替技术

美国|英语

来源: SciTech Connect

【 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.