ORGANIC ELECTROLUMINESCENCE DEVICE AND ELECTRONIC APPARATUS
An organic electroluminescence device having an anode; an emitting layer containing a host material; a first electron-transporting layer containing a first compound; a second electron-transporting layer containing a second compound; and a cathode in this order, wherein the absolute value of the diff...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
11.08.2022
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Subjects | |
Online Access | Get full text |
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Summary: | An organic electroluminescence device having an anode; an emitting layer containing a host material; a first electron-transporting layer containing a first compound; a second electron-transporting layer containing a second compound; and a cathode in this order, wherein the absolute value of the difference between the affinity value of the host material and the affinity value of the first compound is 0.20 or less, the absolute value of the difference between the affinity value of the first compound and the affinity value of the second compound is 0.20 or less, the first compound and the second compound are different compounds, the electron mobility of the second electron-transporting layer is less than 1.00×10−4 cm2/Vs, the second electron-transporting layer does not contain Li, and the second electron-transporting layer does not contain a quinolate complex of Li. |
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Bibliography: | Application Number: US202217592173 |