NewNergy

NewNergy discusses the latest inventions, innovations and breakthroughs in the energy & environmental sciences.

Solar Panels - Solar Cells Efficiency World Record Breakthrough

Posted on Wednesday, June 18, 2008 posted by posted by Ecacofonix @ 11:26 AM

Physicist Bram Hoex and colleagues at Eindhoven University of Technology, together with the Fraunhofer Institute in Germany, have developed a process that improves the energy produced by solar panels by six per cent (in relative terms), a new world record in solar cell efficiency.

By using an ultra-thin aluminium oxide layer at the front of the solar cell, Hoex was able to improve the cell’s conversion of sunlight into energy from 21.9 per cent to 23.2 per cent. The record breaking technology was showcased in the USA at a major solar power convention.An improvement of more than 1 per cent (in absolute terms) may at first glance appear modest, but it can enable solar cell manufacturers to greatly increase the performance of their products.

The ultra-thin (about 30 nanometers) aluminium oxide film contains unprecedented high levels of built-in negative charges, preventing the significant energy losses that usually escape from the surface of solar cell arrays during the day.

Full report from here

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