Fabrication of Highly Efficient Perovskite Nanocrystal Light-Emitting Diodes via Inkjet Printing

Ye，Taikang1; Jia，Siqi1,2; Wang，Zhaojin1; Cai，Rui1; Yang，Hongcheng1; Zhao，Fangqing1; Tan，Yangzhi1; Sun，Xiaowei1; Wu，Dan3; Wang，Kai1

2022-07-01

10.3390/mi13070983

MICROMACHINES   Impact Factor & Quartile

2072-666X

As an effective manufacturing technology, inkjet printing is very suitable for the fabrication of perovskite light-emitting diodes in next-generation displays. However, the unsatisfied efficiency of perovskite light-emitting diode created with the use of inkjet printing impedes its development for future application. Here, we report highly efficient PeLEDs using inkjet printing, with an external quantum efficiency of 7.9%, a current efficiency of 32.0 cd/A, and the highest luminance of 2465 cd/m(2); these values are among the highest values for the current efficiency of inkjet-printed PeLED in the literature. The outstanding performance of our device is due to the coffee-ring-free and uniform perovskite nanocrystal layer on the PVK layer, resulting from vacuum post-treatment and using a suitable ink. Moreover, the surface roughness and thickness of the perovskite layer are effectively controlled by adjusting the spacing of printing dots. This study makes an insightful exploration of the use of inkjet printing in PeLED fabrication, which is one of the most promising ways for future industrial production of PeLEDs.

inkjet printing perovskite nanocrystal light-emitting diodes

SCI ; EI

English

First

National Key Research and Development Program of China["2019YFB1704600","2019A1515111093"] ; National Natural Science Foundation of China["61875082","61905107"] ; Natural Science Foundation of Guangdong Province[2017B030306010] ; KeyArea Research and Development Program of Guangdong Province[2019B010924001] ; Shenzhen Innovation Project["JCYJ20190809152411655","2021032410413036"] ; High-Level University Fund of Guangdong Province[G02236004] ; Natural Science Foundation of Top Talent of SZTU[GDRC202110]

Chemistry ; Science & Technology - Other Topics ; Instruments & Instrumentation ; Physics

Chemistry, Analytical ; Nanoscience & Nanotechnology ; Instruments & Instrumentation ; Physics, Applied

WOS:000832337100001

MDPI

20222712314887

Diodes ; Efficiency ; Fabrication ; Ink ; Ink jet printing ; Perovskite ; Surface roughness

Minerals:482.2 ; Printing:745.1 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Production Engineering:913.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Crystalline Solids:933.1

2-s2.0-85133271555

Web of Science

1.Guangdong University Key Laboratory for Advanced Quantum Dot Displays and Lighting,Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting,Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Department of Mathematics and Theories,Peng Cheng Laboratory,Shenzhen,518038,China
3.College of New Materials and New Energies,Shenzhen Technology University,Shenzhen,518118,China

Ye，Taikang,Jia，Siqi,Wang，Zhaojin,et al. Fabrication of Highly Efficient Perovskite Nanocrystal Light-Emitting Diodes via Inkjet Printing[J]. MICROMACHINES,2022,13(7).

Ye，Taikang.,Jia，Siqi.,Wang，Zhaojin.,Cai，Rui.,Yang，Hongcheng.,...&Wang，Kai.(2022).Fabrication of Highly Efficient Perovskite Nanocrystal Light-Emitting Diodes via Inkjet Printing.MICROMACHINES,13(7).

Ye，Taikang,et al."Fabrication of Highly Efficient Perovskite Nanocrystal Light-Emitting Diodes via Inkjet Printing".MICROMACHINES 13.7(2022).