標題: New bioinspired hole injection/transport materials for highly efficient solution-processed phosphorescent organic light-emitting diodes
作者: Cheng, Chih-Chia
Chu, Yu-Lin
Chang, Feng-Chih
Lee, Duu-Jong
Yen, Ying-Chieh
Chen, Jem-Kun
Chu, Chih-Wei
Xin, Zhong
應用化學系
Department of Applied Chemistry
關鍵字: Conducting polymers;Electro-optical materials;Hole injection/transport layer;Organic light-emitting diodes;Supramolecular assembly
公開日期: 1-四月-2015
摘要: A 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. (C) 2015 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.nanoen.2015.02.010
http://hdl.handle.net/11536/128089
ISSN: 2211-2855
DOI: 10.1016/j.nanoen.2015.02.010
期刊: NANO ENERGY
Volume: 13
顯示於類別:期刊論文