Optimization of morphology of P3HT/PCBM films for organic solar cells: effects of thermal treatments and spin coating solventsG. Janssen, A. Aguirre, E. Goovaerts, P. Vanlaeke, J. Poortmans and J. MancaEur. Phys. J. Appl. Phys., 37 3 (2007) 287-290DOI: https://doi.org/10.1051/epjap:2007002