Light-Emitting Element, Light-Emitting Device, Lighting Device, and Electronic Device
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US20140131686A1
公开(公告)日:2014-05-15
To provide a light-emitting element including a novel compound, which is capable of being used for a transport layer, a host material, or a light-emitting material in a light-emitting element. A light-emitting element which includes an EL layer between a pair of electrodes. In an analysis of the EL layer by liquid chromatography mass spectrometry, an ion having a mass/charge ratio (m/z) of 772 is detected, and by collision of an argon gas with the ion at an energy greater than or equal to 30 eV and less than or equal to 100 eV, one or more of an ion having a mass/charge ratio (m/z) of 349 and an ion having a mass/charge ratio (m/z) of 425 is or are detected.
提供一种包括新化合物的发光元件,可用作传输层、主体材料或发光材料的发光元件。 一种包括在一对电极之间的EL层的发光元件。通过液相色谱质谱分析EL层,检测到具有质荷比(m / z)为772的离子,并且通过氩气与具有质荷比(m / z)为349的离子和具有质荷比(m / z)为425的离子碰撞,在大于或等于30电子伏特且小于或等于100电子伏特的能量下,检测到一个或多个离子。