A group of researchers headed by Dr. Alexander Colsmann at the Light Technology Institute (LTI) will start work this month on organic solar cells. The project is scheduled for a duration of four years and aims at enhancing the efficiency of organic solar cells to more than 10 percent. For this purpose, the researchers use tandem architectures combining solar cells of complementary absorption spectra. The Federal Ministry of Education and Research has granted funding of EUR 4.25 million.