Organic electroluminescent device and material for organic electroluminescent device
申请人:Aoyama Yoshiaki
公开号:US20090167167A1
公开(公告)日:2009-07-02
Disclosed is a novel compound useful as a constituent of an organic EL device. Also disclosed is a practical organic EL device using this compound. This organic EL device has low driving voltage, long life, and reduced leakage current. Specifically disclosed is a compound characterized by having at least one structure (1) shown below in a molecule. Structure (1)
US8268457B2
申请人:——
公开号:US8268457B2
公开(公告)日:2012-09-18
Tetra(pyrazino[2,3-<i>b</i>]pyrazino)porphyrazines: Synthesis, absorption, photophysical and electrochemical properties of strongly electron-deficient macrocycles
derivatives) when compared to other aza-analogs of naphthalocyanines. Photophysical parameters ([Formula: see text] [Formula: see text] 0.25, [Formula: see text] [Formula: see text] 0.65) seemed to be unaffected by change of the macrocycle core and only slightly by different peripheral substituents in agreement with heavy-atom effect. Electrochemical data revealed strong electron-deficient character of hetaryl