Dimensional Tailoring of Ultrahigh Vacuum Annealing-Assisted Quantum Wells for the Efficiency Enhancement of Perovskite Light-Emitting Diodes
Source abstract
Abstract
Quasi-two-dimensional (Q-2D) perovskites featured with multidimensional quantum wells (QWs) have been the main candidates for optoelectronic applications. However, excessive low-dimensional perovskites are unfavorable to the device efficiency due to the phonon-exciton interaction and the inclusion of insulating large organic cations. Herein, the formation of low-dimensional QWs is suppressed by removing the organic cation 1-naphthylmethylamine iodide (NMAI) through ultrahigh vacuum (UHV) annealing. Perovskite light-emitting diode (PLED) devices based on films annealed with optimized UHV conditions show a higher external quantum efficiency (EQE) of 13.0% and wall-plug efficiency of 11.1% compared to otherwise identical devices with films annealed in a glovebox.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Organic Light-Emitting Diodes Research · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratory of Organic Electronics, ITN, Linköping University, Norrköping SE-60221, Sweden
Department of Physics, Chemistry and Biology, Linköping University, Linköping SE-58183, Sweden
Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
Funding
the Natural Science Foundation of Jiangsu Province, China · the National Natural Science Foundation of China · the centre in nano science and technology (CeNano) at Link??ping University
References (42)
Show source-provided references
1. 10.1002/adma.20160136910.1002/adma.201601369 ↗
2. 10.1002/adma.20170709310.1002/adma.201707093 ↗
3. 10.1038/s41467-018-02978-710.1038/s41467-018-02978-7 ↗
4. 10.1021/acs.jpclett.7b0185710.1021/acs.jpclett.7b01857 ↗
5. 10.1002/adfm.20180418710.1002/adfm.201804187 ↗
6. 10.1021/acs.jpclett.7b0237110.1021/acs.jpclett.7b02371 ↗
7. 10.1002/adma.20190416310.1002/adma.201904163 ↗
8. 10.1021/acs.jpclett.9b0246710.1021/acs.jpclett.9b02467 ↗
9. 10.1002/adfm.20180119310.1002/adfm.201801193 ↗
10. 10.1038/s41467-019-09794-710.1038/s41467-019-09794-7 ↗
11. 10.1364/OE.26.000A6610.1364/OE.26.000A66 ↗
12. 10.1016/j.mtnano.2019.10002810.1016/j.mtnano.2019.100028 ↗
13. 10.1038/s41467-018-03049-710.1038/s41467-018-03049-7 ↗
14. 10.1038/s41566-018-0283-410.1038/s41566-018-0283-4 ↗
15. 10.1002/adma.20170348710.1002/adma.201703487 ↗
16. 10.1039/C9NR06834A10.1039/C9NR06834A ↗
17. 10.1021/acs.chemmater.7b0007310.1021/acs.chemmater.7b00073 ↗
18. 10.1021/acsnano.7b0398410.1021/acsnano.7b03984 ↗
19. 10.1021/acs.jpclett.7b0341710.1021/acs.jpclett.7b03417 ↗
20. 10.1038/s41467-018-05909-810.1038/s41467-018-05909-8 ↗
21. 10.1038/s41578-018-0065-010.1038/s41578-018-0065-0 ↗
22. 10.1038/s41528-018-0026-010.1038/s41528-018-0026-0 ↗
23. 10.1002/adom.20170131110.1002/adom.201701311 ↗
24. 10.1039/C9NH00156E10.1039/C9NH00156E ↗
25. 10.1038/s41563-018-0154-x10.1038/s41563-018-0154-x ↗
26. 10.1002/anie.20140646610.1002/anie.201406466 ↗
27. 10.1038/s41467-019-10612-310.1038/s41467-019-10612-3 ↗
28. 10.1021/acsnano.7b0060810.1021/acsnano.7b00608 ↗
29. 10.1021/acs.nanolett.7b0150010.1021/acs.nanolett.7b01500 ↗
30. 10.1002/adom.20180026210.1002/adom.201800262 ↗
31. 10.1016/j.nanoen.2018.10.01110.1016/j.nanoen.2018.10.011 ↗
32. 10.1038/nphoton.2016.18510.1038/nphoton.2016.185 ↗
33. 10.1002/adma.20140521710.1002/adma.201405217 ↗
34. 10.1103/PhysRevLett.110.17740610.1103/PhysRevLett.110.177406 ↗
35. 10.1063/1.282244210.1063/1.2822442 ↗
36. 10.1063/1.296302910.1063/1.2963029 ↗
37. 10.1103/PhysRevLett.110.21740310.1103/PhysRevLett.110.217403 ↗
38. 10.1002/adma.20130160310.1002/adma.201301603 ↗
39. 10.1103/PhysRevB.77.23521510.1103/PhysRevB.77.235215 ↗
40. 10.1107/S002188981200403710.1107/S0021889812004037 ↗
41. 10.1107/S160057671500443410.1107/S1600576715004434 ↗
42. 10.1002/adma.20130418710.1002/adma.201304187 ↗