DataVXACS Applied Materials & InterfacesPaper
journal article·2023-06-14

Improving Perovskite Green Quantum Dot Light-Emitting Diode Performance by Hole Interface Buffer Layers

Qiangqiang Wang, Xuanyu Zhang, Lei Qian, Chaoyu Xiang

ACS Applied Materials & Interfaces· Volume 15· Issue 23
Publisher page
Source abstract

Abstract

Perovskite quantum dot light-emitting diodes (QLEDs) are potential candidates for next-generation displays due to their high color purity and wide color gamut. Due to the strong electron-accepting ability of poly[bis(4-phenyl) (2,4,6-trimethylphenyl) amine] (PTAA), quantum dot (QD) films are prone to be charged, which leads to the imbalance of charge injection and the increase of nonradiative recombination, ultimately affecting the performance of the QLEDs. Here, we compared and studied two polymers, poly(methyl methacrylate) (PMMA) and poly(vinyl pyrrolidone) (PVP), as the hole interface buffer layers of QD films, which effectively reduced the defect density, suppressed nonradiative recombination, and greatly improved the efficiency and stability of QLEDs. The devices with PMMA achieved a maximum external quantum efficiency of 20.71%.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Organic Light-Emitting Diodes Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, Zhejiang, People’s Republic of China

Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Science, 1219 West Zhongguan Road, Ningbo 315201, Zhejiang, People’s Republic of China

Department of Mechanical, Materials, and Manufacturing Engineering, University of Nottingham, Ningbo 315100, Zhejiang, People’s Republic of China

Funding

Natural Science Foundation of Ningbo · National Key Research and Development Program of China · 3315 Innovation Team in Ningbo City · Natural Science Foundation of Zhejiang Province · YONGJIANG Talent Introduction Programme · Zhejiang Innovation and Entrepreneurship Team

References (35)

Show source-provided references
1. 10.1038/s41563-018-0018-410.1038/s41563-018-0018-4 ↗
2. 10.1126/science.aam709310.1126/science.aam7093 ↗
3. 10.1002/adma.20150256710.1002/adma.201502567 ↗
4. 10.1021/nl504877910.1021/nl5048779 ↗
5. 10.1038/s41586-018-0575-310.1038/s41586-018-0575-3 ↗
6. 10.1002/anie.20210481210.1002/anie.202104812 ↗
7. 10.1021/acs.nanolett.2c0306210.1021/acs.nanolett.2c03062 ↗
8. 10.1002/adfm.20220706910.1002/adfm.202207069 ↗
9. 10.1016/j.scib.2020.08.02510.1016/j.scib.2020.08.025 ↗
10. 10.1038/s41566-020-00732-410.1038/s41566-020-00732-4 ↗
11. 10.1038/s41586-022-05304-w10.1038/s41586-022-05304-w ↗
12. 10.1038/s41566-023-01167-310.1038/s41566-023-01167-3 ↗
13. 10.1002/adma.20180583610.1002/adma.201805836 ↗
14. 10.1126/science.aad181810.1126/science.aad1818 ↗
15. 10.1038/s41566-018-0283-410.1038/s41566-018-0283-4 ↗
16. 10.1021/acs.nanolett.5b0495910.1021/acs.nanolett.5b04959 ↗
17. 10.1038/nature1382910.1038/nature13829 ↗
18. 10.1038/s41467-018-04986-z10.1038/s41467-018-04986-z ↗
19. 10.1021/acsphotonics.7b0119510.1021/acsphotonics.7b01195 ↗
20. 10.1021/nn503647610.1021/nn5036476 ↗
21. 10.1021/nl500627x10.1021/nl500627x ↗
22. 10.1038/nenergy.2017.10210.1038/nenergy.2017.102 ↗
23. 10.1038/s41467-020-17633-310.1038/s41467-020-17633-3 ↗
24. 10.1039/D2TC01522F10.1039/D2TC01522F ↗
25. 10.1016/j.orgel.2022.10662010.1016/j.orgel.2022.106620 ↗
26. 10.1039/C8NR09864F10.1039/C8NR09864F ↗
27. 10.1002/adfm.20220706910.1002/adfm.202207069 ↗
28. 10.1021/acsami.8b0970210.1021/acsami.8b09702 ↗
29. 10.1039/D2NR03793A10.1039/D2NR03793A ↗
30. 10.1002/adom.20220177810.1002/adom.202201778 ↗
31. 10.1039/C7EE02634J10.1039/C7EE02634J ↗
32. 10.1021/jacs.7b1043010.1021/jacs.7b10430 ↗
33. 10.1021/acsami.0c1426910.1021/acsami.0c14269 ↗
34. 10.1021/acsami.0c0673710.1021/acsami.0c06737 ↗
35. 10.1038/s41467-018-07571-610.1038/s41467-018-07571-6 ↗