Electrical and optical properties of an organic semiconductor metal-free phthalocyanine (C32H18N8)M.E. Azim-Araghi, J. Baedi and L. Moazzami GoodarziEur. Phys. J. Appl. Phys., 58 3 (2012) 30201DOI: https://doi.org/10.1051/epjap/2012120062