Photoinduced reversible switching of charge carrier mobility in conjugated polymers M. Weiter, J. Navrátil, M. Vala and P. Toman Eur. Phys. J. Appl. Phys., 48 1 (2009) 10401 Published online: 26 June 2009 DOI: 10.1051/epjap/2009112