1. Organic Semiconductor Centre, EaStCHEM School of Chemistry University of St Andrews St Andrews KY16 9ST UK
2. Organic Semiconductor Centre SUPA School of Physics and Astronomy University of St Andrews St Andrews KY16 9SS UK
3. Laboratory for Computational Modeling of Functional Materials & Solid State Physics Laboratory Namur Institute of Structured Matter University of Namur Rue de Bruxelles, 61 5000 Namur Belgium
4. School of Chemistry University of Leeds Woodhouse Lane Leeds LS2 9JT UK