Polymer light emitting devices with Langmuir-Blodgett (LB) films: enhanced performance due to an electron-injecting layer of ionomers - Olivati, Clarissa A.; Ferreira, Marystela; Carvalho, Antonio Jose Felix; Balogh, Débora Terezia; Oliveira Junior, Osvaldo Novais de; Seggern, Heinz von; Faria, Roberto Mendonça (Chemical Physics Letters, 2005)