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1. (WO2015118650) ORGANIC LIGHT-EMITTING ELEMENT, LIGHT SOURCE DEVICE, COATING LIQUID, AND METHOD FOR PRODUCING ORGANIC LIGHT-EMITTING ELEMENT

Pub. No.:    WO/2015/118650    International Application No.:    PCT/JP2014/052830
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Sat Feb 08 00:59:59 CET 2014
IPC: H01L 51/50
H05B 33/10
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: MATSUMORI Masaki
松森 正樹
ARATANI Sukekazu
荒谷 介和
SAKUMA Hirotaka
佐久間 広貴
Title: ORGANIC LIGHT-EMITTING ELEMENT, LIGHT SOURCE DEVICE, COATING LIQUID, AND METHOD FOR PRODUCING ORGANIC LIGHT-EMITTING ELEMENT
Abstract:
The objective of the present invention is to provide: an organic light-emitting element that has increased orderliness of the orientation of dopant molecules and obtains high-efficiency light emission; a light source device; and a method for producing an organic light-emitting element. The organic light-emitting element has a top electrode, a bottom electrode, and a light-emitting layer disposed between the top electrode and the bottom electrode. A first dopant is contained in the light-emitting layer, the first dopant comprises a metal complex having a photoisomerization site, and the horizontal component of the average value of the radiative transition moment of the first dopant with respect to the substrate surface is greater than the vertical component.