DataVXACS Applied Materials & InterfacesPaper
journal article·2018-06-13

Solvent-Assisted Surface Engineering for High-Performance All-Inorganic Perovskite Nanocrystal Light-Emitting Diodes

Lin Wang, Baiquan Liu, Xin Zhao, Hilmi Volkan Demir, Haoshuang Gu, Handong Sun

ACS Applied Materials & Interfaces· Volume 10· Issue 23
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Source abstract

Abstract

All-inorganic cesium halide perovskite nanocrystals have attracted much interest in optoelectronic applications for the sake of the readily adjustable band gaps, high photoluminescence quantum yield, pure color emission, and affordable cost. However, because of the ineluctable utilization of organic surfactants during the synthesis, the structural and optical properties of CsPbBr3 nanocrystals degrade upon transforming from colloidal solutions to solid thin films, which plagues the device operation. Here, we develop a novel solvent-assisted surface engineering strategy, producing high-quality CsPbBr3 thin films for device applications. A good solvent is first introduced as an assembly trigger to conduct assembly in a one-dimensional direction, which is then interrupted by adding a nonsolvent. The nonsolvent drives the adjacent nanoparticles connecting in a two-dimensional direction. Assembled CsPbBr3 nanocrystal thin films are densely packed and very smooth with a surface roughness of ∼4.8 nm, which is highly desirable for carrier transport in a light-emitting diode (LED) device. Meanwhile, the film stability is apparently improved. Benefiting from this facile and reliable strategy, we have achieved remarkably improved performance of CsPbBr3 nanocrystal-based LEDs. Our results not only enrich the methods of nanocrystal surface engineering but also shed light on developing high-performance LEDs.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Advanced Photocatalysis Techniques

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

Affiliations

Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore

Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics & Electronic Sciences, Hubei University, Wuhan 430062, China

Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 639798, Singapore

Department of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey

Centre for Disruptive Photonic Technologies (CDPT), School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore

MajuLab, CNRS-UCA-SU-NUS-NTU International Joint Research Unit, Singapore

Funding

Agency for Science, Technology and Research · Ministry of Education - Singapore · National Research Foundation of Korea · China Scholarship Council · T?rkiye Bilimler Akademisi

References (59)

Show source-provided references
1. 10.1021/nl504877910.1021/nl5048779 ↗
2. 10.1039/c5cc08643d10.1039/c5cc08643d ↗
3. 10.1002/adfm.20160010910.1002/adfm.201600109 ↗
4. 10.1021/jacs.7b0148010.1021/jacs.7b01480 ↗
5. 10.1021/acs.cgd.6b0076410.1021/acs.cgd.6b00764 ↗
6. 10.1021/acs.nanolett.5b0240410.1021/acs.nanolett.5b02404 ↗
7. 10.1002/adma.20150256710.1002/adma.201502567 ↗
8. 10.1021/acs.jpclett.7b0164010.1021/acs.jpclett.7b01640 ↗
9. 10.1021/jacs.5b0540410.1021/jacs.5b05404 ↗
10. 10.1002/adma.20160411010.1002/adma.201604110 ↗
11. 10.1021/jacs.5b1212410.1021/jacs.5b12124 ↗
12. 10.1002/smtd.20170025210.1002/smtd.201700252 ↗
13. 10.1021/acs.jpclett.6b0207310.1021/acs.jpclett.6b02073 ↗
14. 10.1021/acs.nanolett.5b0495910.1021/acs.nanolett.5b04959 ↗
15. 10.1038/ncomms1564010.1038/ncomms15640 ↗
16. 10.1021/acsnano.6b0761710.1021/acsnano.6b07617 ↗
17. 10.1002/adma.20170375810.1002/adma.201703758 ↗
18. 10.1039/c6cs00896h10.1039/c6cs00896h ↗
19. 10.1038/nenergy.2016.19410.1038/nenergy.2016.194 ↗
20. 10.1002/aenm.20170204910.1002/aenm.201702049 ↗
21. 10.1038/ncomms905610.1038/ncomms9056 ↗
22. 10.1002/adfm.20160508810.1002/adfm.201605088 ↗
23. 10.1002/adma.20150357310.1002/adma.201503573 ↗
24. 10.1038/nmat452610.1038/nmat4526 ↗
25. 10.1126/science.aad181810.1126/science.aad1818 ↗
26. 10.1021/acsnano.5b0629510.1021/acsnano.5b06295 ↗
27. 10.1021/acs.jpclett.6b0280010.1021/acs.jpclett.6b02800 ↗
28. 10.1021/acsenergylett.6b0059510.1021/acsenergylett.6b00595 ↗
29. 10.1002/adfm.20160157110.1002/adfm.201601571 ↗
30. 10.1016/j.nanoen.2017.05.00510.1016/j.nanoen.2017.05.005 ↗
31. 10.1021/acsnano.7b0040410.1021/acsnano.7b00404 ↗
32. 10.1039/c6nr08158d10.1039/c6nr08158d ↗
33. 10.1021/acsami.7b0338210.1021/acsami.7b03382 ↗
34. 10.1002/adma.20160078410.1002/adma.201600784 ↗
35. 10.1021/acs.jpcc.7b0393910.1021/acs.jpcc.7b03939 ↗
36. 10.1002/adma.20160388510.1002/adma.201603885 ↗
37. 10.1021/acs.chemrev.6b0019610.1021/acs.chemrev.6b00196 ↗
38. 10.1098/rsta.2011.025410.1098/rsta.2011.0254 ↗
39. 10.1021/acs.jpclett.7b0219210.1021/acs.jpclett.7b02192 ↗
40. 10.1098/rsta.2009.027310.1098/rsta.2009.0273 ↗
41. 10.1021/ja072508910.1021/ja0725089 ↗
42. 10.1126/science.aag270010.1126/science.aag2700 ↗
43. 10.1007/s40843-016-5123-110.1007/s40843-016-5123-1 ↗
44. 10.1016/j.orgel.2011.12.00810.1016/j.orgel.2011.12.008 ↗
45. 10.1002/adfm.20150336810.1002/adfm.201503368 ↗
46. 10.1021/jacs.7b0400010.1021/jacs.7b04000 ↗
47. 10.1002/adma.20170057910.1002/adma.201700579 ↗
48. 10.1021/acs.jpclett.7b0170910.1021/acs.jpclett.7b01709 ↗
49. 10.1021/acsami.6b1245010.1021/acsami.6b12450 ↗
50. 10.1039/c6tc05578h10.1039/c6tc05578h ↗
51. 10.1021/acs.inorgchem.6b0276310.1021/acs.inorgchem.6b02763 ↗
52. 10.1002/aelm.20160044810.1002/aelm.201600448 ↗
53. 10.1039/c6ra27665b10.1039/c6ra27665b ↗
54. 10.1039/c5mh00051c10.1039/c5mh00051c ↗
55. 10.1021/acs.nanolett.6b0411610.1021/acs.nanolett.6b04116 ↗
56. 10.1021/acsnano.7b0785610.1021/acsnano.7b07856 ↗
57. 10.1002/adfm.20170703110.1002/adfm.201707031 ↗
58. 10.1021/acs.nanolett.5b0495910.1021/acs.nanolett.5b04959 ↗
59. 10.1002/adom.20180022010.1002/adom.201800220 ↗