一系列氨基N通过用过氧化氢氧化氨基官能化的前体聚合物(PNs),可以合成氧化物官能化的聚芴均聚物和共聚物(PNO)。PNOs在极性溶剂中具有出色的溶解性,并且从高功函数金属中获得良好的电子注入,使其成为溶液加工的多层聚合物发光二极管(PLED)和聚合物太阳能电池(PSC)界面改性的良好候选者。PNO和PN均用作PLED和PSC中的阴极夹层。发现所得到的器件表现出比基于裸铝阴极的器件更好的性能。研究了侧链和主链变化对器件性能的影响。PNOs / Al阴极器件表现出比PNs / Al阴极器件更好的性能。而且,与带有吡啶基部分的对位键的聚合物相结合的装置,其性能要比与具有元连接的对应物的聚合物的装置更好。使用poly [(2,7‐(9,9‐bis(6‐(N,N-二乙氨基)-己基N-氧化物)芴)-alt-(2,5-吡啶基)](PF6NO25Py)阴极中间层,所得器件的发光效率为16.9 cd A
A novel crosslinkable water/alcohol soluble conjugated polymer PFN-C containing oxetane groups and aminoalkyl groups in the side chains has been developed and used as highly efficient electron injection and transporting material for polymer light-emitting diodes (PLEDs). The unique solubility in polar solvents and crosslinkable ability of PFN-C render it a good candidate for solution processed multilayer PLEDs. It was found that PFN-C can greatly enhance the electron injection from high work-function metal cathode, due to its pendant amino groups. As a result, PLEDs with PFN-C/Al cathode exhibited comparable device performance to the devices with Ba/Al cathode. The resulting green light-emitting device showed promising performance with a maximum luminance efficiency of 13.53 cd A−1.
开发了一种新型的可交联水/醇溶解的共轭聚合物PFN-C,其侧链中含有环氧烷基和氨基烷基。该聚合物被用作高效的电子注入和传输材料,适用于聚合物发光二极管(PLEDs)。PFN-C在极性溶剂中的独特溶解性和可交联能力使其成为适合于溶液处理的多层PLEDs的良好候选材料。研究发现,PFN-C能够显著增强来自高功函数金属阴极的电子注入,这得益于其侧链的氨基基团。因此,采用PFN-C/铝阴极的PLEDs显示出与采用钡/铝阴极的器件相当的性能。最终生成的绿色发光器件显示出令人振奋的性能,最高光效为13.53 cd A−1。
Conjugated Zwitterionic Polyelectrolytes and Their Neutral Precursor as Electron Injection Layer for High-Performance Polymer Light-Emitting Diodes
Conjugatedzwitterionicpolyelectrolytes with free mobile ions, good alcohol solubility, and excellent electroninjection ability are developed. PLEDs based on a Al cathode with a conjugatedzwitterionicpolyelectrolyteselectroninjectionlayer showed more than 70 times higher efficiency than that of bare Al cathode devices.
Amino N-Oxide Functionalized Conjugated Polymers and their Amino-Functionalized Precursors: New Cathode Interlayers for High-Performance Optoelectronic Devices
作者:Xing Guan、Kai Zhang、Fei Huang、Guillermo C. Bazan、Yong Cao
DOI:10.1002/adfm.201200199
日期:2012.7.10
(PLEDs) and polymer solar cells (PSCs). Both PNOs and PNs are used as cathodeinterlayers in PLEDs and PSCs. It is found that the resulting devices show much better performance than devices based on a bare Al cathode. The effect of side chain and main chain variations on the device performance is investigated. PNOs/Al cathodedevices exhibit better performance than PNs/Al cathodedevices. Moreover,
一系列氨基N通过用过氧化氢氧化氨基官能化的前体聚合物(PNs),可以合成氧化物官能化的聚芴均聚物和共聚物(PNO)。PNOs在极性溶剂中具有出色的溶解性,并且从高功函数金属中获得良好的电子注入,使其成为溶液加工的多层聚合物发光二极管(PLED)和聚合物太阳能电池(PSC)界面改性的良好候选者。PNO和PN均用作PLED和PSC中的阴极夹层。发现所得到的器件表现出比基于裸铝阴极的器件更好的性能。研究了侧链和主链变化对器件性能的影响。PNOs / Al阴极器件表现出比PNs / Al阴极器件更好的性能。而且,与带有吡啶基部分的对位键的聚合物相结合的装置,其性能要比与具有元连接的对应物的聚合物的装置更好。使用poly [(2,7‐(9,9‐bis(6‐(N,N-二乙氨基)-己基N-氧化物)芴)-alt-(2,5-吡啶基)](PF6NO25Py)阴极中间层,所得器件的发光效率为16.9 cd A