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

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.
Publication Date:
OSTI Identifier:
1090151
Report Number(s):
NREL/FS-6A42-59020
DOE Contract Number:
AC36-08GO28308
Resource Type:
Technical Report
Resource Relation:
Related Information: Innovation Impact: Solar Manufacturing, NREL (National Renewable Energy Laboratory)
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Solar Energy Techologies Program
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY 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