Photolithography of Colloidal Quantum Dots for Display Applications

doi:10.19894/j.issn.1000-0518.210156

Chinese Journal of Applied Chemistry ›› 2021, Vol. 38 ›› Issue (9): 1175-1188.DOI: 10.19894/j.issn.1000-0518.210156

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Photolithography of Colloidal Quantum Dots for Display Applications

ZHANG Ping-Ping¹, YANG Gao-Ling^2*, KANG Guo-Guo², SHI Jian-Bing¹, ZHONG Hai-Zheng¹

¹MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
²School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China

Received:2021-05-08 Accepted:2021-05-12 Published:2021-09-01 Online:2021-09-06
Supported by:
Beijing Institute of Technology Research Fund Program for Young Scholars (No.3040011182113), and Boe Technology Group Co., Ltd., China

Abstract

Abstract: Quantum dot (QD) light-emitting diodes (LEDs) are considered as a promising direction for next-generation display applications because of their excellent spectral purity, wide color gamut, and high brightness. However, developing a technology for high-resolution patterning of QDs remains challenging. This paper expounds the latest progress of QDs photolithography technology, including lift-off photolithography and direct photolithography technology. In the direct photolithography technology, we are focusing on the mixed photoresist and ligand engineering photolithography, we also introduce the progress of patterned QDs luminescence layer in photoluminescence and electroluminescence application. Finally, we provide the problems in QDs photolithography and our outlooks for potential future directions in the field of ultra-high resolution display.

Key words: Photolithography, Quantum dots, Patterning, Display

CLC Number:

O648

ZHANG Ping-Ping, YANG Gao-Ling, KANG Guo-Guo, SHI Jian-Bing, ZHONG Hai-Zheng. Photolithography of Colloidal Quantum Dots for Display Applications[J]. Chinese Journal of Applied Chemistry, 2021, 38(9): 1175-1188.

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Photolithography of Colloidal Quantum Dots for Display Applications

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