Dual ligand exchange of Cd-free quantum dots and optimal control of ink formulation for improving the performance of all-inkjet-printed qunatum dot light-emitting diodes

IF 1.7 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of the Society for Information Display Pub Date : 2024-05-06 DOI:10.1002/jsid.1296

Jaekook Ha, Sooho Lee, Myoungjin Park, Heunggyu Kim, Yun Ku Jung, Changyeol Han, Jaekwon Hwang, Gyehyun Park, Hak June Lee, Wan Ki Bae, Seunguk Noh, Donghoon Kwak, Sehun Kim, Yeo-geon Yoon, Changhee Lee

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引用次数: 0

Abstract

Quantum dot light-emitting diodes (QD-LEDs) have received significant attention as a next-generation display technology aimed at large-size panel production with lower manufacturing costs and excellent picture quality. Here, we demonstrated all-inkjet-printed 12.4-in. full-color QD-LED display with the 182-ppi resolution. The efficiency and lifetime of inkjet-printed QD-LEDs were improved through the ligand exchange of Cd-free quantum dots (QDs), red and green InP and blue ZnSeTe QDs, and optimal control of ink formulation. Dual ligands enhanced colloidal stability and carrier transport properties. The introduction of appropriate additives in the mixed solvent system improved the inkjet processibility and the morphology of inkjet-printed layers.

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无镉量子点的双配体交换和油墨配方的优化控制用于提高全油墨喷印qunatum点发光二极管的性能

量子点发光二极管（QD-LED）作为下一代显示技术备受关注，其目标是以更低的制造成本和出色的画质生产大尺寸面板。在这里，我们展示了分辨率为 182ppi 的全喷墨打印 12.4 英寸全彩 QD-LED 显示屏。通过交换无镉量子点（QD）、红色和绿色 InP 以及蓝色 ZnSeTe QD 的配体以及优化控制墨水配方，提高了喷墨打印 QD-LED 的效率和寿命。双配体增强了胶体稳定性和载流子传输特性。在混合溶剂系统中引入适当的添加剂可改善喷墨加工性和喷墨打印层的形态。

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来源期刊

Journal of the Society for Information Display 工程技术-材料科学：综合

CiteScore

4.80

自引率

8.70%

发文量

审稿时长

3 months

期刊介绍： The Journal of the Society for Information Display publishes original works dealing with the theory and practice of information display. Coverage includes materials, devices and systems; the underlying chemistry, physics, physiology and psychology; measurement techniques, manufacturing technologies; and all aspects of the interaction between equipment and its users. Review articles are also published in all of these areas. Occasional special issues or sections consist of collections of papers on specific topical areas or collections of full length papers based in part on oral or poster presentations given at SID sponsored conferences.