Semiconductor Energy Laboratory Co., Ltd.

Keito Tosu

Satoshi Seo

Nobuharu Ohsawa

Harue Osaka

Toshiki Sasaki

Takeyoshi Watabe

Hiromitsu Kido

Hideko Yoshizumi

Airi Ueda

Tomoka Hara

Yuta Kawano

Shiho Nomura

Ryo Narukawa

A novel organic compound, a benzofuropyrimidine derivative or a benzothienopyrimidine derivative is provided. The organic compound has a structure in which a benzothienocarbazolyl ring, a benzofurocarbazolyl ring, an indolocarbazolyl ring, or an indenocarbazolyl ring is bonded to the 8-position of a benzofuropyrimidine ring or a benzothienopyrimidine ring directly or through an aromatic hydrocarbon ring. That is, the organic compound is represented by General Formula (G1) below.

Organic compound, light-emitting device, light-emitting apparatus, electronic device and lighting device

A light-emitting device with high emission efficiency is provided. The light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a light-emitting layer and an electron-transport layer; the light-emitting layer includes a light-emitting material; the electron-transport layer includes an organic compound having an electron-transport property and a metal complex of an alkali metal; the ordinary refractive index of the organic compound having an electron-transport property in a peak wavelength of light emitted from the light-emitting material is greater than or equal to 1.50 and less than or equal to 1.75; and the ordinary refractive index of the metal complex of an alkali metal in the peak wavelength of the light emitted from the light-emitting material is greater than or equal to 1.45 and less than or equal to 1.70.

Light-emitting device including organic compound and metal complex

Growing community of inventors

Kanagawa, Japan

Keito Tosu