Loop metal platinum coordination compound non-doping green organic electrofluorescence device

Abstract

The invention relates to a loop metal platinum coordination compound non-doping green organic electrofluorescence device which has a laminated structure. In the laminated structure, an anode, a hole injection layer, a hole injection transmission layer, a luminescent layer and a cathode are sequentially formed on a glass substrate, wherein the luminescent layer is made of a loop metal platinum coordination compound <ppyPT(acam)> which has a special molecular structure and a single component; a 3-acetyl camphor group which has large steric clash and is used as an auxiliary ligand is introduced in the loop metal platinum coordination compound, therefore, intermolecular acting force can be effectively reduced, and consequently, triple state-triple state annihilation caused by concentration can be lowered. The non-doping green organic electrofluorescence device which is prepared by adopting the loop metal platinum coordination compound as the luminescent layer with a single component has the advantages of simple structure, high lightening brightness, high lightening efficiency, stable performance and the like.

Description

technical field [0001] The invention belongs to organic electroluminescent devices, in particular to a high-efficiency non-doped green organic electroluminescent device based on a new ring metal platinum complex (ppyPt (acam)). Background technique [0002] In 1998, Thompson of Princeton University and The team doped the red phosphorescent dye platinum octaethylporphyrin (PtODP) on Alq 3 As an electroluminescent material, a phosphorescent electroluminescent device was made. The external quantum efficiency and internal quantum efficiency of the device reached 4% and 23%, and it was confirmed that the red light of λ=650nm was triplet luminescence. After that, phosphorescence Luminescent materials have attracted widespread attention. The focus of current research is mainly on organic complexes containing transition metals, such as Pt(II), Os(II), Ir(III), Nd(III), Er(III), etc. 6 and d 8 Metal complexes of group metal ions, when these heavy metal atoms are coordinated with...

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