墨水、薄膜及其制备方法和应用
By using nanoparticle ink designed with surface energy differences, the flatness of the quantum dot light-emitting layer was improved, thereby enhancing the quantum efficiency of QLED devices.
CN117683409BActive Publication Date: 2026-07-17GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
- Filing Date
- 2022-12-29
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The quantum dot light-emitting layer in QLED devices has a problem with low film flatness, which leads to a decrease in device performance.
Method used
An ink containing first nanoparticles and second nanoparticles is used. The surface energy of the first nanoparticles is lower than that of the second nanoparticles. The surface energy difference causes the second nanoparticles to be arranged in the lower layer close to the substrate, while the first nanoparticles are arranged in the upper layer of the second nanoparticles, forming a regular arrangement, thus preparing a film with high flatness.
Benefits of technology
The flatness of the quantum dot light-emitting layer was improved, thereby enhancing the quantum efficiency of QLED devices.
✦ Generated by Eureka AI based on patent content.
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Figure CN117683409B_ABST
Abstract
本申请涉及一种墨水、薄膜及其制备方法和应用。该墨水包括第一纳米颗粒、第二纳米颗粒和分散介质，第一纳米颗粒和第二纳米颗粒分散于分散介质中；第一纳米颗粒包括第一配体，第二纳米颗粒包括第二配体；第一配体包括数量不少于3个的氟原子；第二配体不含有氟原子。由于第一纳米颗粒和第二纳米颗粒的结构差异，第一纳米颗粒的表面能低于第二纳米颗粒的表面能。使用该墨水制备薄膜时，由于表面能的差异使得第一纳米颗粒排布于上层，第二纳米颗粒排列在第一纳米颗粒的下层，促使第一纳米颗粒、第二纳米颗粒自发形成规整排布，进而抑制成膜缺陷，起到改善成膜平整度的效果。
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