Composite materials, compositions and preparation methods, thin films, light-emitting devices and display devices
By introducing halogen ligands and imidazole compound cationic ligands onto the surface of quantum dots to form a dense passivation layer, the problem of low quantum yield of quantum dots in fluorescence was solved, and efficient luminescence and improved stability of quantum dots were achieved.
CN122302880APending Publication Date: 2026-06-30GUANGDONG JUHUA RES INST OF ADVANCED DISPLAY +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG JUHUA RES INST OF ADVANCED DISPLAY
- Filing Date
- 2024-12-30
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
The current quantum dot fluorescence quantum yield is low and needs to be improved.
Method used
Composite materials, including quantum dots, halogen ligands, and imidazole compound cationic ligands, are used to form a dense passivation layer through ligand exchange, thereby improving the fluorescence quantum yield and stability of quantum dots.
Benefits of technology
It significantly improves the fluorescence quantum yield and long-term stability of quantum dots, and enhances the optical properties and surface quality of quantum dots.
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Figure CN122302880A_ABST
Abstract
This application discloses a composite material, a composition, a preparation method, a thin film, a light-emitting device, and a display device. The composite material includes quantum dots, halogen ligands, and imidazole compound cationic ligands. The composite material described in this application exhibits a high fluorescence quantum yield.
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