A novel high-efficiency white hyperbranched polymer derived from polyfluorene with green and red iridium(III) complexes as the cores
作者:Jing Sun、Hua Wang、Huixia Xu、Tiaomei Zhang、Lu Li、Jie Li、Yuling Wu、Bingshe Xu、Xinwen Zhang、Wenyong Lai
DOI:10.1016/j.dyepig.2016.03.006
日期:2016.7
single triple-color hyperbranched polymer PF-Ir(ppy)2(pytzph)m-Ir(piq)2(pytzph)n was designed and synthesized, in which green and red iridium(III) complexes acted as cores and blue polyfluorene acted as backbone. PF-Ir(ppy)2(pytzph)m-Ir(piq)2(pytzph)n (m = 5, n = 5 and m = 25, n = 5) had higher quantum efficiency than PF-Ir(piq)2(pytzph)5. The energy transfer from green core bis(2-phenylpyridine)[3-(
设计并合成了一种新型的单一三色超支化聚合物PF-Ir(ppy)2(pytzph)m-Ir(piq)2(pytzph)n,其中绿色和红色铱(III)配合物为核,蓝色聚芴充当主链。PF-Ir(ppy)2(pytzph)m-Ir(piq)2(pytzph)n(m = 5,n = 5且m = 25,n = 5)比PF-Ir(piq)2具有更高的量子效率(pytzph)5。来自三重态高的绿色核芯双(2-苯基吡啶)[3-(2-吡啶基)-5-苯基-1,2,4-三唑]铱(III)[Ir(ppy)2(pytzph)]的能量转移能级(E T = 2.58 eV)对红色核芯双(1-苯基异喹啉基)[3-(2-吡啶基)-5-苯基-1,2,4-三唑]铱(III)[Ir(piq)2[pytzph]](E T = 2.12 eV)可以通过中间的聚(9,9-二辛基芴)(PF)段实现。具有ITO / PEDOT:PSS(40