Efficient organic light-emitting diodes with fluorine-doped tin-oxide anode and electrochemically synthesized sulfonated polyaniline as hole transport layer - Benvenho, Adriano Reinaldo Viçoto; Serbena, José Pedro Mansueto; Lessmann, Rudolf; Hümmelgen, Ivo Alexandre; Mello, Regina Maria Queiróz de; Li, Rosamaria Wu Chia; Cuvero, Jamile Haydée; Gruber, Jonas (Brazilian Journal of Physics, 2005)