A new record for solar cells efficiency has been achieved by the Solar Junction and has been verified by the National Renewable Energy Laboratory's (NRELs) Measurement and Characterization Laboratory. Record of 43.5 percent solar cell efficiency thanks to multijunction cells made of multiple layers of photovoltaic material.
Multijunction solar cells will optimize the conversion of different light spectrum into electrical energy. Multiple layers of photovoltaic layered onto a gallium arsenide substrate to improve the efficiency in converting light into electrical energy.
The use of mirrors to concentrate the sun's rays through the cells size of 5.5 mm square cells. At a concentration of 400 sun has reached values up to 43.5 percent efficiency and maintain the level of up to 1,000 sun.
Multijunction solar cells with concentrated sunlight has long been used in a spacecraft or electricity needs in desert regions. While the company plans to expand production and delivery of commercial cells and hoping for loan guarantees from the Department of Energy.
