Ultrasonic synthesis of Mn-doped CsPbCl3 quantum dots (QDs) with enhanced photoluminescence
Source abstract
Abstract
Abstract Mn-doped CsPbCl3 (CsPbCl3:Mn) perovskite colloidal quantum dots (QDs) attract a great deal of interests, and have great potentials for various optoelectronics applications due to their outstanding optical and electrical properties. However, practical applications of CsPbCl3:Mn QDs are severely limited by the cumbersome preparation methods and low photoluminescence quantum efficiency (PLQY). Herein, we propose a single-step ultrasonic synthesis method to successfully synthesize CsPbCl3:Mn QDs with controlled size and morphology by changing the Mn:Pb ratio. Simultaneously, we introduce triethylamine (TETN) to passivate the surface of CsPbCl3:Mn QDs. The phase purity, microstructure, chemical composition and photoluminescence properties of the samples were investigated by means of various analytic techniques. The synthesized QDs exhibit dual emissions of 411 and 601 nm, ascribing to the excitonic emission of QDs and the characteristic Mn2+ emission, respectively. The quantum yield of the CsPbCl3:Mn QDs could therefore be significantly improved from 17.49 to 41.15%. We believe that the facial synthesis method and the surface passivation of TETN can also be applied to other transition metal or lanthanide ions doped lead halide perovskite QDs.
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 (40)
Show source-provided references
1. Colloidal CsPbX3 (X = Cl, Br, I) nanocrystals 2.0: zwitterionic capping ligands for improved durability and stability10.1021/acsenergylett.8b00035 ↗
2. Surface- vs diffusion-limited mechanisms of anion exchange in CsPbBr3 nanocrystal cubes revealed through kinetic studies10.1021/jacs.6b08178 ↗
3. Highly luminescent cesium lead halide perovskite nanocrystals with tunable composition and thickness by ultrasonication10.1002/anie.201605909 ↗
4. Exciton-to-Dopant energy transfer in Mn-doped cesium lead halide perovskite nanocrystals10.1021/acs.nanolett.6b02772 ↗
5. Organic-inorganic hybrid lead halide perovskites for optoelectronic and electronic applications10.1039/C4CS00458B ↗
6. Stabilizing cesium lead halide perovskite lattice through Mn(II) substitution for air-stable light-emitting diodes10.1021/jacs.7b04000 ↗
7. Optical properties of Mn2+ doped cesium lead halide perovskite nanocrystals via a cation–anion co-substitution exchange reaction10.1039/C7TC03575F ↗
8. Synthesis of CsPbCl3-Mn nanocrystals via cation exchange10.1002/adom.201700520 ↗
9. General strategy for the growth of CsPbX3 (X = Cl, Br, I) perovskite nanosheets from the assembly of nanorods10.1021/acs.chemmater.8b01283 ↗
10. Quantum dot light-emitting diodes based on inorganic perovskite cesium lead halides (CsPbX3)10.1002/adma.201502567 ↗
11. Nanocrystals of cesium lead halide perovskites (CsPbX3, X = Cl, Br, and I): novel optoelectronic materials showing bright emission with wide color gamut10.1021/nl5048779 ↗
12. Tuning the optical properties of cesium lead halide perovskite nanocrystals by anion exchange reactions10.1021/jacs.5b05602 ↗
13. Compositionally dependent phase identity of colloidal CsPbBr3–xIx quantum dots10.1021/acs.chemmater.6b03553 ↗
14. Metal-halide perovskites for photovoltaic and light-emitting devices10.1038/nnano.2015.90 ↗
15. All-inorganic metal halide perovskite nanocrystals: opportunities and challenges10.1021/acscentsci.8b00201 ↗
16. Improving the stability of metal halide perovskite materials and light-emitting diodes10.1002/adma.201704587 ↗
17. Organohalide lead perovskites for photovoltaic applications10.1039/C4EE00942H ↗
18. Perovskite as light harvester: a game changer in photovoltaics10.1002/anie.201308719 ↗
19. How important is the organic part of lead halide perovskite photovoltaic cells? Efficient CsPbBr3 cells10.1021/acs.jpclett.5b00968 ↗
20. Doping Mn2+ in lead halide perovskite nanocrystals: successes and challenges10.1021/acsenergylett.7b00177 ↗
21. CsPbxMn1-xCl3 perovskite quantum dots with high Mn substitution ratio10.1021/acsnano.6b08747 ↗
22. Polarized optoelectronics of CsPbX3 (X = Cl, Br, I) perovskite nanoplates with tunable size and thickness10.1002/adfm.201800283 ↗
23. Dynamics of exciton–Mn energy transfer in Mn-doped CsPbCl3 perovskite nanocrystals10.1021/acs.jpcc.7b06182 ↗
24. Colloidal Mn-doped cesium lead halide perovskite nanoplatelets10.1021/acsenergylett.6b00741 ↗
25. Energy-down-shift CsPbCl3:Mn quantum dots for boosting the efficiency and stability of perovskite solar cells10.1021/acsenergylett.7b00375 ↗
26. Highly luminescent colloidal nanoplates of perovskite cesium lead halide and their oriented assemblies10.1021/jacs.5b11199 ↗
27. CsPbX3 quantum dots for lighting and displays: room-temperature synthesis, photoluminescence superiorities, underlying origins and white light-emitting diodes10.1002/adfm.201600109 ↗
28. Ligand-mediated synthesis of shape-controlled cesium lead halide perovskite nanocrystals via reprecipitation process at room temperature10.1021/acsnano.5b08193 ↗
29. Efficient and stable luminescence from Mn2+ in core and core-Isocrystalline shell CsPbCl3 perovskite nanocrystals10.1021/acs.chemmater.7b00345 ↗
30. Room-temperature and gram-scale synthesis of CsPbX3 (X = Cl, Br, I) perovskite nanocrystals with 50-85% photoluminescence quantum yields10.1039/C6CC01500J ↗
31. Brightly luminescent and color-tunable colloidal CH3NH3PbX3 (X = Br, I, Cl) quantum dots: potential alternatives for display technology10.1021/acsnano.5b01154 ↗
32. From precursor powders to CsPbX3 perovskite nanowires: one-pot synthesis, growth mechanism, and oriented self-assembly10.1002/anie.201707224 ↗
33. Enhanced photoluminescence and solar cell performance via Lewis base passivation of OrganicInorganic lead halide perovskites10.1021/nn5036476 ↗
34. Photoluminescence temperature dependence, dynamics, and quantum efficiencies in Mn2+-doped CsPbCl3 perovskite nanocrystals with varied dopant concentration10.1021/acs.chemmater.7b03311 ↗
35. Mn2+-Doped lead halide perovskite nanocrystals with dual-color emission controlled by halide content10.1021/jacs.6b08085 ↗
36. Controlled synthesis of composition tunable formamidinium cesium double cation lead halide perovskite nanowires and nanosheets with improved stability10.1021/acs.chemmater.6b04848 ↗
37. Versatile PbS quantum dot ligand exchange systems in the presence of Pb-thiolates10.1002/smll.201602956 ↗
38. Temperature-dependent photoluminescence of Mn doped CsPbCl3 perovskite nanocrystals in mesoporous silica10.1016/j.jlumin.2018.07.029 ↗
39. Organometallic synthesis and spectroscopic characterization of manganese-doped CdSe nanocrystals10.1021/ja991249n ↗
40. Synthesis and characterization of dilute magnetic semiconductor manganese-doped Indium arsenide nanocrystals10.1021/nl034419+ ↗