Red electroluminescent material containing furan and OLED (organic light-emitting device) prepared from red electroluminescent material

Abstract

A red electroluminescent material containing furan is characterized by having a structure represented as a formula (I), wherein M is Ir, Eu or Os, and m is 1-3; L is a bidentate chelation assisted ligand containing C and N or C and O; R1-R8 are H, D, F as well as alkyl, alkoxy, fluoroalkyl, silicyl, naphthenic base, cycloalkoxy, -CN and -NO2 with carbon number lower than 12, or are phenyl, alkyl substituted phenyl, thienyl, alkyl substituted thienyl, furyl, alkyl substituted furyl, fluorenyl, alkyl substituted fluorenyl, carbazolyl and alkyl substituted carbazolyl; in (R4)y, y ranges from 1 to 3, X is O, S, Se and Si, and n ranges from 0 to 7.

Description

technical field [0001] The invention relates to a luminescent metal complex and an organic electroluminescent device prepared therefrom; specifically, an electroluminescent red luminescent material containing furan. The disclosed compound is covalently bonded to furan to expand the conjugated structure in the light-emitting ligand, which is conducive to becoming a more stable structure, can be applied to organic light-emitting OLED devices, and improves the application performance of light-emitting OLED display devices. Background technique: [0002] Organic semiconductor materials are new optoelectronic materials, and its large-scale research originated in 1977 by Hideki Shirakawa, A. Heeger and A. McDiamid jointly discovered doped polyacetylene with conductivity up to copper level. Subsequently, in 1987, C.Tang of Kodak Company invented the organic small molecule light-emitting diode (OLED), and in 1990, R.Friend and A.Holmes of Cambridge University invented the polymer li...

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Problems solved by technology

[0028] But the described luminescent metal irid

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