Large-Scale Synthesis of Perovskite Quantum Dots and Their Application to Inkjet-Printed Highly Stable Microarray

被引:3
作者
Long, Zaishang [1 ,2 ]
Li, Hongjin [1 ,2 ]
Cao, Qingli [1 ,2 ]
Feng, Yifeng [1 ,2 ]
Liu, Haipeng [3 ]
Wu, Yiheng [3 ]
Lu, Guochao [1 ,2 ]
Huang, Hanyan [1 ,2 ]
Cai, Qiuting [1 ,2 ]
Zhang, Dingshuo [1 ,2 ]
Zhang, Haoran [1 ,2 ]
Wang, Xinyang [1 ,2 ]
He, Haiping [1 ,2 ,4 ]
Ye, Zhizhen [1 ,2 ,4 ]
Dai, Xingliang [1 ,2 ,4 ]
机构
[1] Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon & Adv Semicond Mat, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ, Inst Wenzhou, Wenzhou Key Lab Novel Optoelect & Nano Mat, Wenzhou 325006, Peoples R China
[3] Wenzhou XINXINTAIJING Tech Co Ltd, Wenzhou 325006, Peoples R China
[4] Shanxi Zheda Inst Adv Mat & Chem Engn, Taiyuan 030002, Shanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
CsPbI3 quantum dots; inkjet printing; large-scale synthesis; microarrays; stability;
D O I
10.1002/smll.202410935
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Perovskite quantum dots (PeQDs) with a pure emission and solution-processable path are highly desirable for color conversion materials to achieve full color and high-resolution display. Yet, operational stability and precise deposition methods remain critical factors that limit their applications. Additionally, the traditional high-temperature synthesis suffers from a short reaction time window, making it difficult to realize large-scale synthesis for practical applications. Here, an in situ reacted multiple-anchoring ligands strategy is reported to effectively extend the high-temperature reaction time for synthesizing PeQDs from 5 to 200 s, endowing the large-scale synthesis in a sufficient time window for mass and heat transfer processes. This strategy simultaneously improves the photo-thermal stability of PeQD patterned films. Uniform and high-resolution microarrays are fabricated by inkjet printing through exquisite control of solvent engineering and substrate optimization, exhibiting reversible fluorescence when suffering high temperatures up to 100 degrees C. This approach enables large-area (10 x 10 cm(2)) red and green dual-color patterned microarrays, covering a color gamut of 128% NTSC and 96% BT. 2020. These advancements mark a significant step toward scalable, high-performance PeQD displays, highlighting great potential for next-generation display technologies.
引用
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页数:11
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