All-solution-processed, highly efficient and stable green light-emitting devices based on Zn-doped CsPbBr3/ZnS heterojunction quantum dots
Source abstract
Abstract
The low-cost, solution-processed and stable perovskite quantum dots (QDs) light-emitting diodes (QLEDs) have great potential applications for the new-generation displays technology and white-LEDs. The stability of perovskite QDs has been improved via polymers or inorganic encapsulation strategies, but at the cost of their semiconducting properties, so it is not suitable for active light-emitting devices. In this paper, the Zn-doped CsPbBr3/ZnS QDs heterojunction were fabricated via a simple solution-phase method, which demonstrated simultaneously enhanced the optical properties and stability of perovskite QDs films without damaging their semiconducting properties. The photoluminescence quantum yields and stability of the Zn-doped CsPbBr3/ZnS heterojunction QDs films have been significantly improved because of good surface passivation on the surface defects of perovskite QDs with ZnS nanoclusters and Zn2+ doping. Finally, solution-processed n-ZnO nanoparticles (NPs) and p-NiO NPs as carrier transport layers are used to fabricate all-inorganic Zn-doped CsPbBr3/ZnS QLEDs. The QLEDs show high-efficiency green light emission with a maximum luminance of 8600 cd/m2 and external quantum efficiency of 4.8%. Moreover, the researched green perovskite QLEDs also show good working stability after a long test time in the outside environment. This study may provide an effective way for the preparation high-performance perovskite QLEDs with good environmental stability, making practical applications possible.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (48)
Show source-provided references
1. Quan LN, García de Arquer FP, Sabatini RP et al (2018) Perovskites for light emission. Adv Mater 30:180199610.1002/adma.201801996 ↗
2. Lu M, Zhang Y, Wang S et al (2019) Metal halide perovskite light-emitting devices: promising technology for next-generation displays. Adv Funct Mater 29:190200810.1002/adfm.201902008 ↗
3. Chiba T, Kido J (2018) Lead halide perovskite quantum dots for light-emitting devices. J Mater Chem C 6:11868–1187710.1039/C8TC03561J ↗
4. Wu ZH, Wei J, Sun YN et al (2019) Air-stable all-inorganic perovskite quantum dot inks for multicolor patterns and white LEDs. J Mater Sci 54:6917–692910.1007/s10853-019-03382-2 ↗
5. Protesescu L, Yakunin S, Bodnarchuk MI et al (2015) Nanocrystals of cesium lead halide perovskites (CsPbX3, X=Cl, Br, and I): novel optoelectronic materials showing bright emission with wide color gamut. Nano lett 15:3692–369610.1021/nl5048779 ↗
6. Pan G, Bai X, Xu W et al (2020) Bright blue light emission of Ni2+ Ion-doped CsPbClxBr 3–x perovskite quantum dots enabling eficient light-emitting devices. ACS Appl Mater Interfaces 12:14195–1420210.1021/acsami.0c01074 ↗
7. Xu L, Li J, Cai B, Song J, Zhang F, Fang T, Zeng H (2020) A Bilateral interfacial passivation strategy promoting efficiency and stability of perovskite quantum dot light-emitting diodes. Nat Commun 11:390210.1038/s41467-020-17633-3 ↗
8. Song J, Li J, Li X et al (2015) Quantum dot light-emitting diodes based on inorganic perovskite cesium lead halides (CsPbX3). Adv Mater 27:7162–716710.1002/adma.201502567 ↗
9. Chiba T, Hayashi Y, Ebe H et al (2018) Anion-exchange red perovskite quantum dots with ammonium iodine salts for highly efficient light-emitting devices. Nat Photonics 12:681–68710.1038/s41566-018-0260-y ↗
10. Park JH, Lee A, Yu JC et al (2019) Surface ligand engineering for efficient perovskite nanocrystal-based light-emitting diodes. ACS Appl Mater Interfaces 11:8428–843510.1021/acsami.8b20808 ↗
11. Li J, Xu L, Wang T et al (2017) 50-Fold EQE improvement up to 6.27% of solution-processed all-inorganic perovskite CsPbBr 3 QLEDs via surface ligand density control. Adv Mater 29:160388510.1002/adma.201603885 ↗
12. Song J, Li J, Xu L et al (2018) Room-temperature triple-ligand surface engineering synergistically boosts ink stability, recombination dynamics, and charge injection toward EQE-11.6% perovskite QLEDs. Adv Mater 30:180076410.1002/adma.201800764 ↗
13. Zheng C, Bi C, Huang F et al (2019) Stable and strong emission CsPbBr 3 quantum dots by surface engineering for high-performance optoelectronic films. ACS Appl Mater Interfaces 11:25410–2541610.1021/acsami.9b07818 ↗
14. Yang D, Li X, Wu Y et al (2019) Surface halogen compensation for robust performance enhancements of CsPbX3 perovskite quantum dots. Adv Opt Mater 7:190027610.1002/adom.201900276 ↗
15. Yang JN, Song Y, Yao JS et al (2020) Potassium bromide surface passivation on CsPbI3-xBrx nanocrystals for efficient and stable pure red perovskite light-emitting diodes. J Am Chem Soc 142:2956–296710.1021/jacs.9b11719 ↗
16. Yao JS, Ge J, Han BN et al (2018) Ce3+-doping to modulate photoluminescence kinetics for efficient CsPbBr 3 nanocrystals based light-emitting diodes. J Am Chem Soc 140:3626–363410.1021/jacs.7b11955 ↗
17. Yao JS, Ge J, Wang KH et al (2019) Few-nanometer-Sized α-CsPbI3 quantum dots enabled by strontium substitution and Iodide passivation for efficient red-light emitting diodes. J Am Chem Soc 141:2069–207910.1021/jacs.8b11447 ↗
18. Shen X, Zhang Y, Kershaw SV et al (2019) Zn-alloyed CsPbI3 nanocrystals for highly efficient perovskite light-emitting devices. Nano Lett 19:1552–155910.1021/acs.nanolett.8b04339 ↗
19. Subramanian A, Pan Z, Zhang Z et al (2018) Interfacial energy-level alignment for high-performance all-inorganic perovskite CsPbBr3 quantum dot-based inverted light-emitting diodes. ACS Appl Mater Interfaces 10:13236–1324310.1021/acsami.8b01684 ↗
20. Zhang X, Wang W, Xu B et al (2017) Thin film perovskite light-emitting diode based on CsPbBr3 powders and interfacial engineering. Nano Energy 37:40–4510.1016/j.nanoen.2017.05.005 ↗
21. Zhang X, Lin H, Huang H et al (2016) Enhancing the brightness of cesium lead halide perovskite nanocrystal based green light-emitting devices through the interface engineering with perfluorinated ionomer. Nano Lett 16:1415–142010.1021/acs.nanolett.5b04959 ↗
22. Yang K, Li F, Liu Y et al (2018) All-solution-processed perovskite quantum dots light-emitting diodes based on the solvent engineering strategy. ACS Appl Mater Interfaces 10:27374–2738010.1021/acsami.8b09702 ↗
23. Hoshi K, Chiba T, Sato J et al (2018) Purification of perovskite quantum dots using low-dielectric-constant washing solvent “Diglyme” for highly efficient light-emitting devices. ACS Appl Mater Interfaces 10:24607–2461210.1021/acsami.8b05954 ↗
24. Zhang J, Liu X, Jiang P et al (2019) Red-emitting CsPbBr I2/PbSe heterojunction nanocrystals with high luminescent efficiency and stability for bright light-emitting diodes. Nano Energy 66:10414210.1016/j.nanoen.2019.104142 ↗
25. Li X, Yu D, Cao F et al (2016) Healing all-inorganic perovskite films via recyclable dissolution-recyrstallization for compact and smooth carrier channels of optoelectronic devices with high stability. Adv Funct Mater 26:5903–591210.1002/adfm.201601571 ↗
26. Kumawat NK, Liu XK, Kabra D et al (2019) Blue perovskite light-emitting diodes: progress, challenges and future directions. Nanoscale 11:2109–212010.1039/C8NR09885A ↗
27. Xiao ZG, Kerner RA, Zhao LF et al (2017) Efficient perovskite light-emitting diodes featuring nanometre-sized crystallites. Nat Photonics 11:108–11510.1038/nphoton.2016.269 ↗
28. Yang C, Zhuang B, Lin J et al (2020) Ultrastable glass-protected all-inorganic perovskite quantum dots with finely tunable green emissions for approaching Rec 2020 backlit display. Chem Eng J 398:12561610.1016/j.cej.2020.125616 ↗
29. Zhao ZF, Wu ZH, Cheng J et al (2018) Nanocomposites of perovskite quantum dots embedded in magnesium silicate hollow spheres for multicolor display. J Phys Chem C 122:16887–1689310.1021/acs.jpcc.8b03721 ↗
30. Sun C, Zhang Y, Ruan C et al (2016) Efficient and stable white LEDs with silica-coated inorganic perovskite quantum dots. Adv Mater 28:10088–1009410.1002/adma.201603081 ↗
31. Wu ZH, Wang P, Wu J et al (2020) Ultra-stable phosphor of h-BN white graphene-loaded all-inorganic perovskite nanocrystals for white LEDs. J Lumin 219:11694110.1016/j.jlumin.2019.116941 ↗
32. Cha W, Kim HJ, Lee S et al (2017) Size-controllable and stable organometallic halide perovskite quantum dots/polymer films. J Mater Chem C 5:6667–667110.1039/C7TC01562C ↗
33. Peng XG, Schlamp MC, Kadavanich AV et al (1997) Epitaxial growth of highly luminescent CdSe/CdS core/shell nanocrystals with photostability and electronic accessibility. J Am Chem Soc 119:7019–702910.1021/ja970754m ↗
34. Reiss P, Protiere M, Li L (2009) Core/shell semiconductor nanocrystals. Small 5:154–16810.1002/smll.200800841 ↗
35. Moon H, Lee C, Lee W et al (2019) Stability of quantum dots, quantum dot films, and quantum dot light-emitting diodes for display applications. Adv Mater 31:180429410.1002/adma.201804294 ↗
36. Zhang X, Wu X, Liu X et al (2020) Heterostructural CsPbX3-PbS (X=Cl, Br, I) quantum dots with tunable Vis-NIR dual emission. J Am Chem Soc 142:4464–447110.1021/jacs.9b13681 ↗
37. Chen W, Hao J, Hu W et al (2017) Enhanced stability and tunable photoluminescence in perovskite CsPbX3/ZnS quantum dot heterostructure. Small 13:160408510.1002/smll.201604085 ↗
38. Zhang X, Lu M, Zhang Y et al (2018) PbS capped CsPbI3 nanocrystals for efficient and stable light-emitting devices using p-i-n structure. ACS Central Sci 4:1352–135910.1021/acscentsci.8b00386 ↗
39. Ravi VK, Saikia S, Yadav S et al (2020) CsPbBr3/ZnS core/shell type nanocrystals for enhancing luminescence lifetime and water stability. ACS Energy Lett 5:1794–179610.1021/acsenergylett.0c00858 ↗
40. Shi Z, Li S, Li Y et al (2018) Strategy of solution-processed all-inorganic heterostructure for humidity/temperature-stable perovskite quantum dot light-emitting diodes. ACS Nano 12:1462–147210.1021/acsnano.7b07856 ↗
41. Liu M, Zhong G, Yin Y et al (2017) Aluminum-doped cesium lead bromide perovskite nanocrystals with stable blue photoluminescence used for display backlight. Adv Sci 4:170033510.1002/advs.201700335 ↗
42. Van der Stam W, Geuchies JJ, Altantzis T et al (2017) Highly emissive divalent-ion-doped colloidal CsPb1–xMxBr3 perovskite nanocrystals through cation exchange. J Am Chem Soc 139:4087–409710.1021/jacs.6b13079 ↗
43. Dong Y, Qiao T, Kim D et al (2018) Precise control of quantum confinement in cesium lead halide perovskite quantum dots via thermodynamic equilibrium. Nano lett 18:3716–372210.1021/acs.nanolett.8b00861 ↗
44. Swarnkar A, Marshall AR, Sanehira EM et al (2016) Quantum dot–induced phase stabilization of α-CsPbI3 perovskite for high-efficiency photovoltaics. Science 354:92–9510.1126/science.aag2700 ↗
45. Dai X, Deng Y, Peng X et al (2017) Quantum-dot light-emitting diodes for large-area displays: towards the dawn of commercialization. Adv Mater 29:160702210.1002/adma.201607022 ↗
46. Caruge JM, Halpert JE, Wood V et al (2008) Colloidal quantum-dot light-emitting diodes with metal-oxide charge transport layers. Nat photonics 2:247–25010.1038/nphoton.2008.34 ↗
47. Sun Y, Wang W, Zhang H et al (2018) High-performance quantum dot light-emitting diodes based on Al-doped ZnO nanoparticles electron transport layer. ACS Appl Mater Interfaces 10:18902–1890910.1021/acsami.8b04754 ↗
48. Zhao ZF, Jiang C, Pu X et al (2016) Robust Pb2+ sensor based on flexible ZnO/ZnS core-shell nanoarrays. Appl Phys Lett 108:15310410.1063/1.4945686 ↗