Title:
A light emitting element, a luminescent device, electrical appliances
Document Type and Number:
Japanese Patent JP6081525
Kind Code:
B2
Abstract:
In the present invention, a light-emitting element operating at low driving voltage, consuming low power, emitting light with good color purity and manufactured in high yields can be obtained. A light-emitting element is disclosed with a configuration composed of a first layer containing a light-emitting material, a second layer, a third layer are formed sequentially over an anode to be interposed between the anode and a cathode in such a way that the third layer is formed to be in contact with the cathode. The second layer is made from n-type semiconductor, a mixture including that, or a mixture of an organic compound having a carrier transporting property and a material having a high electron donor property. The third layer is made from p-type semiconductor, a mixture including that, or a mixture of an organic compound having a carrier transporting property and a material having a high electron acceptor property.
Inventors:
Daisuke Kumaki
Tetsushi Seo
Tetsushi Seo
Application Number:
JP2015118228A
Publication Date:
February 15, 2017
Filing Date:
June 11, 2015
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H01L51/50; H05B33/14; H05B33/22; H01L51/52
Domestic Patent References:
| JP2005166637A | ||||
| JP2004281371A | ||||
| JP2003264085A | ||||
| JP2003272860A | ||||
| JP2004281408A |