Sax, StefanStefanSaxRugen-Penkalla, NicoleNicoleRugen-PenkallaNeuhold, AlfredAlfredNeuholdSchuh, SebastianSebastianSchuh0000-0001-6368-0339Zojer, EgbertEgbertZojerList, Emil J. W.Emil J. W.ListMüllen, KlausKlausMüllen2022-01-142022-01-142010Advanced Materials, 22(18), 2087-20910935-9648http://hdl.handle.net/20.500.11790/1752An all-solution processed organic light-emitting diode with enhanced device efficiency based on an additional methanol-soluble polyfluorene layer (see figure) with nonionic ethylene glycol side chains is presented. Due to an asymmetric shift of the energy levels at the polymer/polymer interface, significant efficiency enhancements were obtained.eninfo:eu-repo/semantics/closedAccessWissenschaftlicher Artikel10.1002/adma.200903076