Inkjet Printing Matrix Perovskite Quantum Dot Light-Emitting Devices

被引：65
作者：
Li, Danyang [1 ]
Wang, Junjie [1 ]
Li, Miaozi [1 ]
Xie, Gancheng [1 ]
Guo, Biao [1 ]
Mu, Lan [1 ]
Li, Haiyang [1 ]
Wang, Jian [1 ]
Yip, Hin-Lap [1 ]
Peng, Junbiao [1 ]
机构：
[1] South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China
来源：
ADVANCED MATERIALS TECHNOLOGIES | 2020年 / 5卷 / 06期
关键词：
inkjet printing; light-emitting diodes; perovskite quantum dots; DIODES; FORMAMIDINIUM; NANOCRYSTALS;
D O I：
10.1002/admt.202000099
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Perovskite light emitting devices have been expected to be utilized in the field of displays. In this work, a stable FA(0.3)Cs(0.7)PbBr(3) perovskite quantum dot ink with optimized octane:dodecane cosolvent is obtained by introducing a trace amount of long-chain ligand of oleylamine (OAm) during the quantum dot purification process. A green electroluminescent matrix device with 120 pixels per inch (PPI) is realized from the ink by using an inkjet printing technique, exhibiting a luminance of 1233 cd m(-2), a peak current efficiency of 10.3 cd A(-1), and an external quantum efficiency of 2.8%. The results may suggest a possibility of making perovskite quantum dot displays by using the inkjet printing technique.
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页数：5
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