Organic Compound, Light-Emitting Element, Display Module, Lighting Module, Light-Emitting Device, Display Device, Electronic Device, and Lighting Device
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US20150243892A1
公开(公告)日:2015-08-27
A light-emitting element with high emission efficiency. The light-emitting element includes a pair of electrodes and an EL layer between the pair of electrodes. In the light-emitting element, the EL layer contains at least a light-emitting material, the light-emitting material is a 1,6-bis(diphenylamino)pyrene derivative, and a structural change between an excited state and a ground state in the 1,6-bis(diphenylamino)pyrene derivative is smaller than that in a 1,6-bis(diphenylamino)pyrene derivative in which hydrogen is bonded to ortho positions of two phenyl groups of each of two diphenylamino groups.
一个发光效率高的发光元件。该发光元件包括一对电极和一对电极之间的EL层。在发光元件中,EL层包含至少一种发光材料,发光材料为1,6-双(二苯基氨基)芘衍生物,且1,6-双(二苯基氨基)芘衍生物在激发态和基态之间的结构变化小于在每个二苯基氨基组的两个苯基的邻位上连接氢的1,6-双(二苯基氨基)芘衍生物。