PV and magnetic field effects in poly(3-hexylthiophene)-fullerene cells doped with phthalocyanine soluble derivativeI. Kaulach, I. Muzikante, L. Gerca, M. Plotniece, M. Roze, J. Kalnachs, G. Shlihta, P. Shipkovs, V. Kampars and A. TokmakovEur. Phys. J. Appl. Phys., 40 2 (2007) 169-173DOI: https://doi.org/10.1051/epjap:2007147