Nenad Vukmirovic visited the Department of Chemical Physics at Lund University on 27th and 28th of January. He was hosted by Prof. Villy Sundstrom and the members of his group. After very fruitful discussions, a collaboration was initiated on modeling the experimental data from Lund on mobility of charge carriers in organic solar cell materials at terahertz frequencies. On January 28th, Nenad gave a department seminar on: "Simulations of charge carrier transport in disordered organic polymers".