Preparation method and application of efficient blue light emission hybrid material

Through a simple solution ultrasonic treatment method, a high-efficiency blue light-emitting hybrid material was prepared using cheap tetraethylammonium ligand, which solved the problems of complex synthesis and poor thermal stability in the existing technology, and achieved efficient and stable blue light emission performance, which is suitable for white light LED and X-ray imaging.

CN120665109APending Publication Date: 2025-09-19SUN YAT SEN UNIV
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Patent Information

Application Number
CN202510803384.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2025-09-19

AI Technical Summary

Technical Problem

The synthesis process of existing high-efficiency blue light-emitting hybrid materials is complex and time-consuming, may introduce impurities, affect commercial applications, and the materials have poor thermal stability.

Method used

Cuprous halide, triphenylphosphine and tetraethylammonium halide were ultrasonically treated in N,N-dimethylformamide to form a uniform solution, which was then washed, centrifuged and vacuum dried to prepare a high-efficiency blue light emitting hybrid material.

Benefits of technology

The rapid preparation of high-efficiency blue light-emitting hybrid materials has been achieved, with a yield of up to 88%-98%, a photoluminescence quantum yield of 70%, an emission wavelength concentrated in the range of 440-467nm, and a thermal decomposition temperature exceeding 190°C, making them suitable for white light LEDs and X-ray imaging.

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Abstract

The invention belongs to the technical field of light-emitting hybrid materials, and particularly discloses a preparation method and application of an efficient blue light emitting hybrid material. The preparation method comprises the following steps: dispersing cuprous halide, triphenylphosphine (tpp) and tetraethylammonium halide in N, N-dimethylformamide (DMF) according to a molar ratio of 1: 1: 1 to form a uniform solution, and performing ultrasonic treatment at room temperature to generate luminescent powder; and washing, centrifuging and drying in vacuum to obtain the hybrid material. The highest photoluminescence quantum yield is up to 70%, and the luminescence mechanism is thermally activated delayed fluorescence. The material can be used for a white light LED (CIE coordinate (0.33, 0.33)) and an X-ray scintillator (the light yield is 32537 photons / MeV, and the spatial resolution is 20lpmm <-1 >), and has the characteristics of simple preparation and excellent performance.
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