Preparation and application of platinum complex material with aggregated-state induced phosphorescence emission characteristic

Abstract

The invention relates to platinum complex material with aggregated-state induced phosphorescence emission characteristic and a preparation method thereof, belonging to the technical field of photoelectric material. The platinum complex material with aggregated-state induced phosphorescence emission characteristic can be applied to organic electronic fields such as organic flat panel displaying and gas sensing. The platinum complex material with aggregated-state induced phosphorescence emission characteristic comprises a cyclic metal ligand, a metal center and a Schiff base ligand and has the following structural formula. The platinum complex material with aggregated-state induced phosphorescence emission characteristic can be synthesized under the mild condition in simple steps, can emit very weak light or no light in solution but strong triplet-state phosphorescence in the aggregated state, and can be expected to function as a commercially potential organic photoelectric material.

Description

technical field The invention belongs to the technical field of photoelectric materials. It specifically relates to a preparation method of a class of platinum complexes with aggregation-induced phosphorescence emission characteristics and their applications in the fields of organic light-emitting diodes (OLEDs) and gas sensing. Background technique Ordinary organic fluorescent materials emit strongly in dilute solutions, but their emission weakens with the increase of concentration. In the solid state or aggregated state, due to the strong intermolecular interaction, it leads to a strong non-radiative decay process. Its fluorescence intensity will be greatly reduced, which is manifested as concentration quenching of fluorescence emission. This concentration quenching effect makes the luminescent material must be doped in the host material when it is applied to the electroluminescent device, so as to avoid or reduce the concentration quenching and complicate the device prep...

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Problems solved by technology

However, the output signals of the above-mentioned types of luminescent materials with aggregation-induced emission properties are mostly limited to fluorescence

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