1. Laboratory of Organic Electronics (LOE), Department of Science and Technology (ITN), Campus Norrköping, Linköping University, SE-60174 Norrköping, Sweden
2. Department of Physics, Ferdowsi University of Mashhad, Mashhad, Iran
3. Group of Scientific Visualization, Department of Science and Technology (ITN), Campus Norrköping, Linköping University, SE-60174 Norrköping, Sweden
4. Swedish e-Science Center (SeRC), Linköping University, SE-581 83 Linköping, Sweden