9,10-Bis(bipyridyl, pyridylphenyl, phenylpyridyl, and biphenyl)anthracenes Combining High Electron Transport and Injection, Efficiency and Stability in Fluorescent Organic Light-emitting Devices
9,10-Bis(bipyridyl, pyridylphenyl, phenylpyridyl, and biphenyl)anthracenes Combining High Electron Transport and Injection, Efficiency and Stability in Fluorescent Organic Light-emitting Devices
A Pyridine-Containing Anthracene Derivative with High Electron and Hole Mobilities for Highly Efficient and Stable Fluorescent Organic Light-Emitting Diodes
pyridine‐containing anthracene derivative, 9,10‐bis(3‐(pyridin‐3‐yl)phenyl)anthracene (DPyPA), which comprehensively outperforms the widely used electron‐transport material (ETM), tris(8‐quinolinolato) aluminum (Alq3), is synthesized. DPyPA exhibits ambipolar transport properties, with both electron and hole mobilities of around 10−3 cm−2 V−1 s−1; about two orders of magnitude higher than that of Alq3
含吡啶的蒽衍生物9,10-双(3-(吡啶-3-基)苯基)蒽(DPyPA),其性能完全优于广泛使用的电子传输材料(ETM)三(8-喹啉)铝(Alq 3)被合成。DPyPA表现出双极性传输性质,电子迁移率和空穴迁移率均约为10 -3 cm -2 V -1 s -1。比Alq 3高约两个数量级。DPyPA吡啶环中的氮原子配位为锂阳离子,当使用LiF / Al作为阴极时,可实现有效的电子注入。电化学测量表明DPyPA的阳离子和阴离子都是稳定的,这可能会改善基于DPyPA的设备的稳定性。与将Alq 3用作ETM的设备相比,以DPyPA作为ETM的红色,绿色和蓝色荧光有机发光二极管显示出更低的开启电压,更高的效率和更强的亮度。与Alq 3相比,基于DPyPA的设备的功率效率提高了80–140%基于设备。这些设备性能的提高归因于载流子平衡的增加。此外,采用DPyPA作为ETM的设备具有出色的稳定性:基于DPyPA的设备的半衰期为6
Intense solid-state blue emission with a small Stokes’ shift: π-stacking protection of the diphenylanthracene skeleton
作者:Azusa Iida、Shigehiro Yamaguchi
DOI:10.1039/b901794a
日期:——
Intense blue emissions with a small Stokesâ shift both in solution and in the solid state were attained by introducing (pentafluorophenyl)dimethylsilyl groups to a 9,10-diphenylanthracene skeleton as the Ï-stacking tethers.
POLYMERIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE ELEMENT COMPRISING THE SAME
申请人:Idemitsu Kosan Co., Ltd.
公开号:EP2213693A1
公开(公告)日:2010-08-04
A polymer comprising the repeating units derived from an aromatic compound having a specific structure and a repeating unit derived from the compound represented by formula (1):
wherein Ar1 to Ar4 are each independently a substituted or unsubstituted aryl group having 6 to 40 ring-forming carbon atoms, a substituted or unsubstituted heterocyclic group having 3 to 40 ring-forming atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; X is a substituted or unsubstituted aryl group having 6 to 40 ring-forming carbon atoms, a substituted or unsubstituted heterocyclic group having 3 to 40 ring-forming atoms, or a substituted or unsubstituted di- to tetravalent styrene-derived group; and s is an integer of 0 to 3. The polymer is useful as a light emission material and realizes a polymer electroluminescence device excellent in device characteristics such as lifetime and emission efficiency.
POLYMER COMPOUND, RETICULATED POLYMER COMPOUND PRODUCED BY CROSSLINKING THE POLYMER COMPOUND, COMPOSITION FOR ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC EL DISPLAY, AND ORGANIC EL LIGHTING
申请人:Mitsubishi Chemical Corporation
公开号:EP2272894A1
公开(公告)日:2011-01-12
An object of the invention is to provide a polymer compound having a high hole transport capacity, excellent in electrochemical stability, and suitable to film formation according to a wet film formation method. Another object of the invention is to provide an organic electroluminescence element having a high current efficiency, a low drive voltage, and a long derive lifetime. The polymer compound has a crosslinking group bonding to the arylamine moiety in the repeating unit via at least one single bond therebetween.
CONJUGATED POLYMER FOR ORGANIC ELECTROLUMINESCENCE ELEMENT
申请人:Mitsubishi Chemical Corporation
公开号:EP3182479A1
公开(公告)日:2017-06-21
An object of the present invention is to provide a conjugated polymer which has a high hole transportability and is excellent in solubility and depositability. Another object of the present invention is to provide an organic electroluminescence element which is capable of low voltage driving and has a high luminous efficiency and drive stability. The conjugated polymer of the present invention is a conjugated polymer containing a specific structure as the repeating unit, where the conjugated polymer contains an insolubilizing group as a substituent, the weight average molecular weight (Mw) is 20,000 or more and the dispersity (Mw/Mn) is 2.10 or less.