1. M. Pope, C.E. Swenberg, Electronic Processes in Organic Crystals and Polymers (Oxford University Press, Oxford, 1999), and references therein
2. Springer Series in Material Science,2001
3. W. Brütting (ed.), Physics of Organic Semiconductors (Wiley-VCH, Weinheim, 2005), and references therein
4. M.A. Baldo, D.F. O’Brien, M.E. Thompson, S.R. Forrest, Phys. Rev. B 60, 14422 (1999)
5. A.B. Djurisic, C.Y. Kwong, W.L. Guo, T.W. Lau, E.H. Li, Z.T. Liu, H.S. Kwok, L.S.M. Lam, W.K. Chan, Thin Solid Films 416, 233 (2002)