Multilayer fluorescent polymer light emitting diode with low voltage and high efficiency M. Ben Khalifa, G. Wantz, J. P. Parneix and L. Hirsch Eur. Phys. J. Appl. Phys., 41 1 (2008) 29-32 Published online: 19 December 2007 DOI: 10.1051/epjap:2007174