发明名称 |
ORGANIC ELECTROLUMINESCENT ELEMENT, ELECTRONIC DEVICE, LIGHT EMITTING DEVICE, AND LIGHT EMITTING MATERIAL |
摘要 |
An objective of the present invention is to provide: an organic electroluminescent element which has high efficiency and a long service life; and an electronic device and a light emitting device, each of which is provided with the organic electroluminescent element. Another objective of the present invention is to provide a light emitting material which has high efficiency and a long service life. An organic electroluminescent element according to the present invention comprises at least one organic layer that is interposed between a positive electrode and a negative electrode. This organic electroluminescent element is characterized in that: at least one organic layer contains a fluorescent compound and a host compound; the internal quantum efficiency by electrical excitation of the fluorescent compound is 50% or more; the half-value width of the emission band of an emission peak wavelength in the emission spectrum of the fluorescent compound at room temperature is 100 nm or less; and the host compound has a structure represented by general formula (I). |
申请公布号 |
WO2015022987(A1) |
申请公布日期 |
2015.02.19 |
申请号 |
WO2014JP71430 |
申请日期 |
2014.08.14 |
申请人 |
KONICA MINOLTA, INC. |
发明人 |
TANAKA, TATSUO;TAKA, HIDEO;KITA, HIROSHI |
分类号 |
H01L51/50 |
主分类号 |
H01L51/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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