0.01≦μe/μh≦100 (I)"/>
Light emitting element, light emitting device, display apparatus, and electronic equipment having a light emitting layer with host and assist dopant materials with different electron and hole transportation properties
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Light emitting element, light emitting device, display apparatus, and electronic equipment having a light emitting layer with host and assist dopant materials with different electron and hole transportation properties
Light emitting element, light emitting device, display apparatus, and electronic equipment having a light emitting layer with host and assist dopant materials with different electron and hole transportation properties
A light emitting element has a cathode, an anode, and a light emitting layer (light emitting section) which is provided between the cathode and the anode and emits light by a driving voltage being applied thereto, in which the light emitting section is configured to include a light emitting material, a host material which holds the light emitting material, and an assist dopant material, one of the host material and the assist dopant material is a material with a high electron transportation property, the other is a material with a high hole transportation property, and when a mobility of holes is μh and a motility of electrons is μe in the light emitting layer, a mobility ratio which is represented by μe/μh satisfies a relationship of formula (I) below.0.01≦μe/μh≦100 (I)
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机译：发光元件具有阴极，阳极和发光层（发光部），该发光层设置在阴极和阳极之间，并通过向其施加驱动电压来发光。包括发光材料，保持发光材料的主体材料和辅助掺杂剂材料，主体材料和辅助掺杂剂材料之一是具有高电子传输性能的材料，另一种是具有高电子传输性能的材料。空穴传输性，并且在发光层中当空穴的迁移率是μh并且电子的迁移率是μe时，由μe/μh表示的迁移率满足下式（I）的关系。<？in-line-formulae description =“在线表达式” end =“ lead”？> 0.01≦μ e /μh≦100（I）<？in-line-formulae description =“内联公式” end =“ tail”？>
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