NITROGEN-CONTAINING HETEROCYCLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT USING THE SAME
申请人:IDEMITSU KOSAN CO., LTD.
公开号:EP1602648A1
公开(公告)日:2005-12-07
A novel derivative of heterocyclic compound having nitrogen atom with a structure made by bonding special groups to benzimidazole, a material for an organic electroluminescence (EL) device comprising the derivative of heterocyclic compound having nitrogen atom and an organic electroluminescence device comprising at least one organic compound layer containing a light emitting layer sandwiched between a pair of electrodes, wherein the device contains the derivative of heterocyclic compound having nitrogen atom. An organic EL device achieving elevation of luminance and of efficiency in light emission even under low driving voltage is obtainable by an employment of the derivative of heterocyclic compound having nitrogen atom for at least one layer composing organic compound layers of the EL device.
COMPOSITION, ORGANIC ELECTROLUMINESCENCE DEVICE, AND ELECTRONIC APPARATUS
申请人:IDEMITSU KOSAN CO.,LTD.
公开号:US20220416178A1
公开(公告)日:2022-12-29
An organic electroluminescence device having a cathode; an anode; and an emitting layer disposed between the cathode, wherein a first layer in an electron-transporting zone disposed between the emitting layer and the cathode contains a first compound and a second compound, the electron mobility μ
1
of the first compound is 1.0×10
−5
cm
2
/Vs or lower, and the second compound is one or more selected from the group consisting of compounds represented by each of the following formulas (11), (12), and (13), provided that the first compound and the second compound are different compounds.
US7851071B2
申请人:——
公开号:US7851071B2
公开(公告)日:2010-12-14
US8097349B2
申请人:——
公开号:US8097349B2
公开(公告)日:2012-01-17
Nitrogen-containing heterocycle derivative and organic electroluminescent element using the same