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                      | Red 
                        wine mends solar cells |  
                     
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                                  | Generating 
                                    electricity from sunlight is still relatively 
                                    expensive after decades of research and development, 
                                    but advances in thin film semiconductor materials 
                                    are opening new avenues to generating cheap, 
                                    clean energy. Adding a bath to the solar cell 
                                    manufacturing process could lead to a dramatic 
                                    boost in efficiency. And it even works with 
                                    red wine. Full 
                                    story
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