摘要:
An electroluminescence device having a layer containing a specific metal coordination compound is provided. The metal coordination compound is represented by formula (1) below: MLmL′n, (1) wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L′ are mutually different bidentate ligands; m is 1, 2 or 3 and n is 0, 1 or 2 with the proviso that m+n is 2 or 3; a partial structure MLm is represented by formula (2) shown below and a partial structure ML′n is represented by formula (3) or (4) shown below: The metal coordination compound of the formula (1) is characterized by having at least one aromatic substituent for at least one of CyN1, CyN2, CyC1 and CyC2. The metal coordination compound having the aromatic substituent is effective in providing high-efficiency luminescence, long-term high luminance, and less deterioration by current passing.
摘要翻译:提供具有含有特定金属配位化合物的层的电致发光器件。 金属配位化合物由下式(1)表示:<?in-line-formula description =“In-line Formulas”end =“lead”?> ML sub> L' 其中M是Ir,Pt,Rh或Pd的金属原子;(3)其中M是Ir,Pt,Rh或Pd的金属原子; L和L'是相互不同的二齿配体; m为1,2或3,n为0,1或2,条件是m + n为2或3; 部分结构MLm由下面所示的式(2)表示,并且部分结构ML'N N由如下所示的式(3)或(4)表示:式(1)的金属配位化合物 )的特征在于对于CyN1,CyN2,CyC1和CyC2中的至少一种具有至少一个芳族取代基。 具有芳香族取代基的金属配位化合物在提供高效率发光,长期高亮度和通过电流劣化方面是有效的。
摘要:
The present invention provides a luminescent device using a luminescent material which has high luminescence efficiency and high stability, and is available at a low cost. The luminescent device is characterized in that as a luminescent material is used a binuclear copper coordination compound having a partial structure represented by the general formula (1): Cu-A-Cu, wherein Cu is a copper ion and A is a bidentate ligand.
摘要:
An organic electroluminescent device includes an organic compound layer containing luminescent sections placed between substantially transparent electrodes. An insulating light absorption layer is in contact with first electrodes, and the light absorption layer is placed between a substrate and the first electrodes.
摘要:
An electroluminescence device having a layer containing a specific metal coordination compound is provided. The metal coordination compound is represented by formula (1) below: MLmL′n (1), wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L′ are mutually different bidentate ligands; m is 1, 2 or 3 and n is 0, 1 or 2 with the proviso that m+n is 2 or 3; a partial structure MLm is represented by formula (2) shown below and a partial structure ML′n is represented by formula (3) or (4) shown below: at least one of the optional substituent(s) of the cyclic groups, and the cyclic groups CyCl and CyC2 includes a benzofuran structure capable of having a substituent represented by the following formula (5): The metal coordination compound having the benzofuran structure is effective in providing high-efficiency luminescence and long-term high luminance.
摘要:
The present invention provides a luminescent device using a luminescent material which has high luminescence efficiency and high stability, and is available at a low cost. The luminescent device is characterized in that as a luminescent material is used a binuclear copper coordination compound having a partial structure represented by the general formula (1): Cu-A-Cu, wherein Cu is a copper ion and A is a bidentate ligand.
摘要:
In a luminescence device formed of one or plural layers of organic film between a cathode and an anode, at least one layer is a luminescence layer, and a luminescence molecule of a metal coordination compound having a basic structure represented by formula (1) MLmL′n and having a substituent on at least one of cyclic groups incorporated as a guest in a host material at a concentration of at least 8 wt. %, which is higher than a concentration at which a luminescence molecule of a similar structure but having no substituent exhibits a maximum luminescence efficiency to form the luminescence layer. As a result, a high-efficiency luminescence device is provided, which is less likely to cause concentration extinction even when a luminescence molecule is contained at a high concentration relative to the host material in the luminescence layer.
摘要:
In a luminescence device formed of one or plural layers of organic film between a cathode and an anode, at least one layer is a luminescence layer, and a luminescence molecule of a metal coordination compound having a basic structure represented by formula (1) MLmL′n and having a substituent on at least one of cyclic groups incorporated as a guest in a host material at a concentration of at least 8 wt. %, which is higher than a concentration at which a luminescence molecule of a similar structure but having no substituent exhibits a maximum luminescence efficiency to form the luminescence layer. As a result, a high-efficiency luminescence device is provided, which is less likely to cause concentration extinction even when a luminescence molecule is contained at a high concentration relative to the host material in the luminescence layer.
摘要:
A luminescence device is constituted by a substrate, a first electrode disposed on the substrate, at least one organic luminescence function layer disposed on the first electrode, a second electrode disposed on the above at least one organic luminescence function layer, and an oxygen absorbent disposed between the substrate and the second electrode or between the first and second electrodes. To the luminescence device, a voltage is applied between the first and second electrodes to cause phosphorescence from at last one layer constituting the above-mentioned at least one organic luminescence function layer preferably containing the oxygen absorbent. The oxygen absorbent may be formed in a layer disposed at a region other than pixel portions.
摘要:
An organic electroluminescent device includes an organic compound layer containing luminescent sections placed between substantially transparent electrodes. An insulating light absorption layer is in contact with first electrodes, and the light absorption layer is placed between a substrate and the first electrodes.
摘要:
There is provided an organic light-emitting device obtained by using a specific copper coordination compound as a light-emitting material, which has a basic structure in which two copper ions are crosslinked in a ring form by one of atomic groups containing a halogen atom, a sulfur atom, and an nitrogen atom. The light-emitting device provides high luminescence efficiency and high stability at low cost by using an inexpensive copper coordination compound as a light-emitting material.