Tuesday, October 22, 2013

Aluminium studs can make all solar panels 22% more efficient

Scientists have demonstrated that the efficiency of all solar panel designs could be improved by up to 22 per cent by covering their surface with aluminium studs that bend and trap light inside the absorbing layer.



At the microscopic level, the studs make the surface of the solar panels look similar to the interlocking building bricks played with by children across the world.



Dr Hylton and his colleagues attached rows of aluminium cylinders just 100 nanometres across to the top of the solar panel, where they interact with passing light, causing individual light rays to change course. More energy is extracted from the light as the rays become effectively trapped inside the solar panel and travel for longer distances through its absorbing layer.






Nature Scientific Reports - Loss mitigation in plasmonic solar cells: aluminium nanoparticles for broadband photocurrent enhancements in GaAs photodiodes



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Reposted via Next Big Future

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