The Department of Nanotechnology is pleased to invite you for a lecture by Dr Xianjie Liu from Linköping University in Sweden, who will visit our university next week. The lecture on "Interface Energetics at Organic Solar Cells: a spectroscopic view" will take place on the nearest Tuesday, October 27th, 2015, at 13:30, CDBN building, al. Piastów 45, room 1/44 (1st floor).