以溶解于甲醇和N,N-二甲基甲酰胺(DMF)混合极性溶剂中的三苯胺类共轭聚电解质聚[N-(4-三氟甲基苯)-4,4'-二苯胺-共-N-(4-磺酸锂基苯)-4,4'-二苯胺](PTFTS-Li)作为空穴传输层,分别以红光材料芴与4,7-二噻吩-2,1,3-苯并噻二唑共聚物(PFO-DBT15)和绿光材料芴与2,1,3-苯并噻二唑共聚物(PFO-BT15)为发光层制备了抗侵蚀空穴传输层的聚合物电致发光器件.并与传统的苯磺酸掺杂聚乙烯基二氧噻吩(PEDOT-PSS)为阳极缓冲层和裸氧化铟锡(ITO)为阳极的器件对比,以PEDOT/PTFTS-Li或PTFTS-Li作为空穴传输层的器件比单-PEDOT作为空穴传输层的器件外量子效率的两倍还多.
Triphenylamine-based conjugated polyelectrolytes poly[N-(4-sulfonatophenyl)-4, 4'-diphenylamine-alt-N-(p-trifluoromethyl)phenyl-4,4'-diphen-ylamine] lithium salt (PTFTS-Li) are soluble only in polar solvents, such as a mixed solvent of methanol and N, N-dimethyl formamide (DMF). Devices with PTFTS-Li layer inserted between ITO(Tin doped indium oxide) or PEDOT(Poly(3,4-ethylene-dioxythiophene):poly(styrene sulfuric acid)) and red-emitting polymer PFO-DBT15(poly(9, 9-dioctylfluorene-co-4, 7-dithien-2-yl-2, 1, 3-benzothiadiazole)) or green-emitting polymer PFO-BT15 ( poly ( 9, 9-dioctylfluorene-co-2, 1, 3-benzothiadiazole)) showed enhanced efficiency compared with the reference devices composed of bare ITO or ITO/PEDOT as anode.
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