ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE, LIGHTING DEVICE

To provide a flexible organic electroluminescent element having higher characteristics and lower cost, in particular, an organic electroluminescent element allowing for obtaining excellent luminescence and being excellent in atmospheric stability.SOLUTION: An organic electroluminescent element havin...

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Main Authors KUWATA KENJI, SHIMIZU TAKAHISA, FUKAGAWA HIROHIKO, MORII KATSUYUKI, ONO HIROSHI, SASAKI TASUKU, HASEGAWA MUNEHIRO
Format Patent
LanguageEnglish
Japanese
Published 01.11.2022
Subjects
ADVERTISING
BASIC ELECTRIC ELEMENTS
CRYPTOGRAPHY
DISPLAY
DISPLAYING
EDUCATION
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
LABELS OR NAME-PLATES
PHYSICS
SEALS
SEMICONDUCTOR DEVICES
SIGNS
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Summary:To provide a flexible organic electroluminescent element having higher characteristics and lower cost, in particular, an organic electroluminescent element allowing for obtaining excellent luminescence and being excellent in atmospheric stability.SOLUTION: An organic electroluminescent element having at least a pair of electrodes and organic layers therebetween, in particular, includes: a cathode of the pair of electrodes being a layer containing magnesium and silver and/or aluminum, whose volume ratio of magnesium is 2% or more and 30% or less, and whose average thickness is 40nm or less; and, adjacent to the cathode, an organic electron injection layer containing an organic material capable of coordination-bonding to a metal atom.SELECTED DRAWING: Figure 1 【課題】より高特性かつより安価なフレキシブル有機電界発光素子を提供すること。特に、良好な発光が得られ、かつ大気安定性に優れた有機電界発光素子を提供する。【解決手段】少なくとも一対の電極とその間に有機層を有する有機電界発光素子であって、該有機電界発光素子は、マグネシウムと、銀及び／又はアルミニウムとを含み、マグネシウムの体積比率が２％以上、３０％以下である、平均厚さが４０ｎｍ以下の層を陰極とし、該陰極に隣接して金属原子に配位結合可能な有機材料を含む有機電子注入層を有することを特徴とする有機電界発光素子。【選択図】図１
Bibliography:Application Number: JP20210071277