光致电子转移(ET)是有机光电器件中载流子光生最重要的过程。在基于偶氮化合物的层状光感受器中,载流子光生通过空穴传输材料 (HTM) 的掺入而敏感。我们研究了这个过程以阐明高度敏化的机制。首先,测量并比较层状光感受器和载流子生成层的光致 ET 效率和整体量子效率。HTM 增强光诱导 ET 的结果意味着 HTM 催化作用以减少活化能。尽管这种外在 ET 独立于电场发生,但随后的成对解离取决于电场。下一个,通过使用 50 多个光感受器在很宽的范围内改变能隙,研究了 ET 的能隙依赖性。测量的效率针对能隙绘制,其中未观察到倒置区域。
Regioselective Catalytic and Stepwise Routes to Bulky, Functional-Group-Appended, and Luminescent 1,2-Azaborinines
作者:Marius Schäfer、Julian Schäfer、Rian D. Dewhurst、William C. Ewing、Mirjam Krahfuß、Maximilian W. Kuntze-Fechner、Marius Wehner、Christoph Lambert、Holger Braunschweig
DOI:10.1002/chem.201600653
日期:2016.6.13
The regioselective syntheses of 1,2‐azaborinines is achieved using an unsymmetrical iminoborane through both catalytic and stepwise modular routes. The 1,2‐azaborinine ring can be selectively functionalized in the 4‐ and/or 6‐position through control of the stepwise reaction sequence, allowing access to vinyl‐functionalized and redox‐active, luminescent, donor‐functionalized 1,2‐azaborinines. The electrochemistry
COMPOSITION FOR USE IN ORGANIC DEVICE, POLYMER FILM, AND ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:Mitsubishi Chemical Corporation
公开号:EP3173456A1
公开(公告)日:2017-05-31
The present invention relates to a composition for use in an organic device, comprising at least two cross-linking compounds, wherein
each of the at least two cross-linking compounds is a polymer that has a hole-transporting site and constitutional repeating units, the at least two polymers having different average numbers of cross-linking groups per constitutional repeating unit and/or different numbers of cross-linking groups in portions other than the constitutional repeating units, and
wherein the cross-linking compounds are compounds having a partial structure of the following formula [109]:
The present invention further pertains to an organic electroluminescent element that comprises an anode and a cathode on a substrate and at least one organic layer disposed between the anode and the cathode, wherein at least one organic layer is a layer that is produced by forming a film of the composition for use in an organic device above.
Ni-catalyzed arylation of bromomagnesium diarylamides with aryl N,N-dimethylsulfamates
作者:Hiroshi Tadaoka、Tetsu Yamakawa
DOI:10.1016/j.tetlet.2012.08.015
日期:2012.10
The combination use of Ni(cod)(2) and N,N-1,3-bis(2,6-diisopropylphenyl)-4-imidazoline-2-ylidene as a catalyst successfully gave unsymmetrical N,N-diaryl-N',N'-diphenyl-1,1'-biphenyl-4,4'-diamines through the arylation of bromomagnesium diarylamide with 1-(4'-diphenylamino-1,1'-biphenylyl) N,N-dimethylsulfamate. This Ni catalyst and Grignard reagents of diaryl or monoarylamides were also useful in the syntheses of various triarylamines and diarylamines from corresponding aryl N,N-dimethylsulfamates. (C) 2012 Elsevier Ltd. All rights reserved.