合成了以二辛基芴,螺双(芴)和螺(环十二烷-芴)为核心单元,不同数量的咔唑和噻吩部分作为外围基团的新型空穴传输树枝状分子。所有的树枝状分子均通过1 H NMR,13 C NMR,FTIR,UV-vis,PL光谱和MALDI-TOF进行表征。它们在高玻璃化转变和分解温度下具有热稳定性,并具有化学可逆的氧化还原过程。它们被用作多层有机发光二极管(OLED)的空穴传输层(HTL)材料,该有机发光二极管的导通电压低,约为2.5 V,发绿色光,其最大亮度约为25400 cd m -2。
Fluorene-Carbazole Dendrimers: Synthesis, Thermal, Photophysical and Electroluminescent Device Properties
作者:Ozlem Usluer、Serafettin Demic、Daniel A. M. Egbe、Eckhard Birckner、Cem Tozlu、Almantas Pivrikas、Alberto Montaigne Ramil、Niyazi Serdar Sariciftci
DOI:10.1002/adfm.201001153
日期:2010.12.8
spiro(cylododecane‐fluorene) as the core unit and different numbers of carbazole and thiophene moieties as the peripheral groups are synthesized. All the dendrimers are characterized by 1H NMR, 13C NMR, FTIR, UV–vis, PL spectroscopy, and MALDI‐TOF. They are thermally stable with high glass transition and decomposition temperatures and exhibit chemically reversible redox processes. They are used as the hole‐transporting
合成了以二辛基芴,螺双(芴)和螺(环十二烷-芴)为核心单元,不同数量的咔唑和噻吩部分作为外围基团的新型空穴传输树枝状分子。所有的树枝状分子均通过1 H NMR,13 C NMR,FTIR,UV-vis,PL光谱和MALDI-TOF进行表征。它们在高玻璃化转变和分解温度下具有热稳定性,并具有化学可逆的氧化还原过程。它们被用作多层有机发光二极管(OLED)的空穴传输层(HTL)材料,该有机发光二极管的导通电压低,约为2.5 V,发绿色光,其最大亮度约为25400 cd m -2。
Solution-processable bipolar host materials composed of fluorenyl, carbazolyl and 1,3,4-oxadiazolyl derivatives: synthesis and application in phosphorescent organic light-emitting diodes
作者:Tso-Hsing Fan、Yun Chen
DOI:10.1039/c6tc01108j
日期:——
Carrier transport in a host is crucial for enhancing the emission efficiency of phosphorescentorganiclight-emittingdiodes (PhOLEDs). The study prepared two new solution-processable bipolar hosts (FC3O and FC4O) containing fluorenyl, hole-transporting carbazolyl and electron-transporting oxadiazolyl moieties to investigate their applicability to PhOLEDs. The ratios of oxadiazolyl over carbazolyl