SCL's Marko Mladenovic attended The 12th International Krutyn Summer School "Solving the World's Energy Demands with Molecules and Nanostructures in Sunlight", held from 1st to 6th October 2012 in Krutyn, Poland. The school was a high-level and highly intensive scientific event focusing on cutting-edge know-how on organic and nanomaterials for advanced photovoltaics. During the poster session Marko presented his work on "Electronic structure of low-angle grain boundaries in naphthalene".