Cheng C.-C.Chu Y.-L.Chang F.-C.Lee D.-J.Yen Y.-C.Chen J.-K.Chu C.-W.Xin Z.2019-05-142019-05-14201522112855https://scholars.lib.ntu.edu.tw/handle/123456789/408141A new concept to supramolecular assembly of existed functional polymers, capable of forming network-like organizational clusters through multiple hydrogen-bonding interactions has been exploited. In this paper, a new adenine-based poly(triphenylamine-carbazole) (PTC-A) has been prepared which exhibits a high self-complementary ability in solution and solid states owing to the formation of adenine-adenine (A-A) pairs by induced hierarchical self-assembly. Comparing with uracil-substituted PTC sample (PTC-U), PTC-A presents a much higher thermal stability, electrochemical stability and solvent-resistance ability due to the formation of the more stable physically cross-linking structure. When the PTC-A is utilized as a hole injection/transport layer in a trilayer OLED device, a remarkable improvement in performance relative to the control PTC and PTC-U under similar experimental conditions has been achieved. Further comparison with a control device using a conventional PEDOT:PSS, the efficiency of the solution-processed phosphorescent PLED device with PTC-A is significantly higher than those of PTC-U and PEDOT:PSS-based devices. Thus, PTC-A represents the next-generation hole injection/transport material for high efficiency LED device and low-cost fabrication process. ? 2015 Elsevier Ltd.Conducting polymersElectro-optical materialsHole injection/transport layerOrganic light-emitting diodesSupramolecular assemblyjournal article10.1016/j.nanoen.2015.02.0102-s2.0-84924589578https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924589578&doi=10.1016%2fj.nanoen.2015.02.010&partnerID=40&md5=60bdd82bee4ad23f5c23e1f833fdfd24