Effect of non-zero Schottky barrier on the J-V characteristics of organic diodes Pankaj Kumar, S. C. Jain, Vikram Kumar, Suresh Chand and R. P. Tandon Eur. Phys. J. E, 28 4 (2009) 361-368 Published online: 11 March 2009 DOI: 10.1140/epje/i2008-10427-y