Quantum dot, preparation method of quantum dot, and electronic device including quantum dot
CN120435536APending Publication Date: 2025-08-05SAMSUNG DISPLAY CO LTD
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Patent Information
- Application Number
- CN202380089976.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-12-29
- Filing Date
- 2023-12-14
- Publication Date
- 2025-08-05
AI Technical Summary
Technical Problem
Existing quantum dots have shortcomings in chemical stability and photoluminescence characteristics, which are difficult to meet the needs of high-quality electronic devices.
Method used
Methods for preparing quantum dots include forming a core and shell structure, where the core contains indium and phosphorus, the shell consists of Group III and Group VI elements, and satisfying a specific mole ratio, forming the core and shell simultaneously through a cation exchange reaction, and adjusting the emission wavelength.
Benefits of technology
Quantum dots show excellent chemical stability and photoluminescent properties, especially blue luminescent properties, with adjustable emission wavelengths and suitable for high-quality electronic devices.
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Figure CN120435536A_ABST
Abstract
Quantum dots, a method of preparing the same, and an electronic device including the quantum dots are provided, each of the quantum dots including a core and a first shell covering at least a portion of the core, where the core includes indium (In), a first element, and phosphorus (P), the first shell includes a second element and a third element, the first element and the second element are each independently a Group III element, and the third element is each independently a Group III element. The third element is a Group VI element and satisfies inequality 1. Lt; the inequality is 1gt; (M1 + M2 + M3) / MIngt; 7. In inequality 1, MIn is the number of moles of In in the core and the first shell, M1 is the number of moles of the first element in the core and the first shell, M2 is the number of moles of the second element in the core and the first shell, and M3 is the number of moles of the third element in the core and the first shell.
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