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Anti-aging elixir for solar cells
Date:8/2/2012

the cells; the electronic components thus have optimal protection," says project Manager Rafal Mickiewicz. The experts at CSE constructed prototypes from the silicone-laminated cells, and tested these photovoltaic modules in a climate chamber at low temperatures and under cyclic loads. Afterwards the module performance was tested with a light flasher. In addition the researchers used electro-luminescence-imaging for the detection of micro cracks. A comparison of the results with those of conventional solar modules proved that silicone-encased photovoltaic modules are more resistant to cyclic loading of the type modules experience in strong winds, in particular at a frosty minus 40 degrees Celsius.

"Dow Corning Corporation collaborated with researchers at the Fraunhofer CSE Photovoltaic Modules Group for two years. This collaboration significantly improved our understanding of the materials requirements of our solar modules, particularly in regard to sustainability and output," concludes Andy Goodwin, Global Science & Technology Manager, Dow Corning Solar Solutions.

In the meantime, the tests have been published at the 26th European Photovoltaics Solar Energy Conference in 2011. "The study results demonstrate that silicone lamination is well-suited for certain applications, because the silicone protects the fragile components on the inside well, and moreover, withstands severe temperature fluctuations. With this technology we can, for instance, make modules with thin Si cells more robust," concludes Mickiewicz.


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Contact: Christian Hoepfner
choepfner@fraunhofer.org
617-575-7250
Fraunhofer-Gesellschaft
Source:Eurekalert  

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