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1. US20190036046 - COMPOSITION, PHOSPHORESCENT COMPOUND, AND LIGHT EMITTING DEVICE

Office United States of America
Application Number 16072243
Application Date 24.01.2017
Publication Number 20190036046
Publication Date 31.01.2019
Publication Kind A1
IPC
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51
Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
F
ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
15
Compounds containing elements of the 8th Group of the Periodic System
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51
Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50
specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
H01L 51/00
C07F 15/00
H01L 51/50
CPC
C07F 15/0033
C07F 15/006
C07F 15/0073
C07F 15/0086
H01L 51/0085
H01L 51/0087
Applicants Sumitomo Chemical Company, Limited
Inventors Toshiaki SASADA
Taichi ABE
Tomoyasu YOSHIDA
Takakazu SAITO
Priority Data 2016-015799 29.01.2016 JP
Title
(EN) COMPOSITION, PHOSPHORESCENT COMPOUND, AND LIGHT EMITTING DEVICE
Abstract
(EN)

A composition is provided in which a phosphorescent compound represented by formula (1) and a host material are blended with each other. The amount of chlorine atoms contained as impurities in the phosphorescent compound is 3.5 ppm by mass or less with respect to the total amount of solid contents blended in the composition

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In Formula (1), M1 represents an iridium atom; n1 represents an integer of 1 or more, n2 represents an integer of 0 or more, n1+n2 is 2 or 3; E1 and E2 represent a carbon atom or a nitrogen atom; R1 ring represents a 5-membered aromatic heterocyclic ring and R2 ring represents an aromatic hydrocarbon ring; A1-G1-A2 represents an anionic bidentate ligand; A1 and A2 represent a nitrogen atom; and G1 represents a single bond.