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    • 39. 发明授权
    • Organic electroluminescent element
    • 有机电致发光元件
    • US08664647B2
    • 2014-03-04
    • US13386354
    • 2010-07-22
    • Naomi NagaiMasami NishidaNobuhito MiuraToshio MatsumotoHirotaka Umezaki
    • Naomi NagaiMasami NishidaNobuhito MiuraToshio MatsumotoHirotaka Umezaki
    • H01L29/08
    • H01L51/5278H01L51/006H01L51/0072H01L51/0077H01L51/0081H01L2251/303H01L2251/5361
    • Provided is a high-luminance, long-life laminated organic electroluminescent element. The organic electroluminescent element has a composition in which a plurality of light-emitting units, including at least one organic light-emitting layer, are laminated between a positive electrode and a negative electrode, and in which a linking layer is held between the respective light-emitting units. The linking layer is formed by laminating, in succession from the positive electrode side, an electron generating/transport section, an intermediate layer, and a hole generating/transport section, which contain at least one metal selected from a group consisting of an alkali metal, alkaline earth metal, rare earth metal, alloy of these metals, and compound of these metals. Preferably the intermediate layer contains an electrical insulating non-semiconductive substance having a specific resistance which is between 1.0×102 Ω·cm and 1.0×109 Ω·cm.
    • 提供了高亮度,长寿命的层叠有机电致发光元件。 有机电致发光元件具有将包含至少一个有机发光层的多个发光单元层叠在正极和负极之间的组成,并且其中将连接层保持在各个光 发单位。 连接层通过从正电极侧依次层叠电子发生/输送部分,中间层和产生孔/输送部分而形成,该部分含有至少一种选自碱金属 ,碱土金属,稀土金属,这些金属的合金,以及这些金属的化合物。 优选地,中间层含有电阻率在1.0×102Ω·cm和1.0×109Ω·cm之间的电绝缘非半导体材料。