Femtosecond pulsed laser ablation in microfluidics for synthesis of photoluminescent ZnSe quantum dots
Source abstract
Abstract
Abstract A simple but new toxic chemical free method, Femtosecond Laser Ablation in Microfluidics (FLAM) was proposed for the first time. ZnSe quantum dots of 4–6 nm were synthesized and with the use of hyperbranched Polyethyleneimine (PEI) as both structural and functional coated layer. These aqueous nanosized micelles consisting of quantum dots exhibit deep defect states emission of bright green light centered at 500 nm. A possible mechanism for the enhanced board band emission was discussed. The properties of toxic matters free and enhanced photoluminescence without doped transition metal ions demonstrate an application potential for biomedical imaging.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Laser-Ablation Synthesis of Nanoparticles · Laser Material Processing Techniques · Laser-induced spectroscopy and plasma
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
Show source-provided references
1. Brightness-equalized quantum dots10.1038/ncomms9210 ↗
2. High-efficiency light-emitting devices based on quantum dots with tailored nanostructures10.1038/nphoton.2015.36 ↗
3. Efficient exciton generation in atomic passivated CdSe/ZnS quantum dots light-emitting devices10.1038/srep34659 ↗
4. Nanodiamonds and silicon quantum dots: ultrastable and biocompatible luminescent nanoprobes for long-term bioimaging10.1039/C4CS00486H ↗
5. Passivation using molecular halides increases quantum dot solar cell performance10.1002/adma.201503657 ↗
6. Improved photovoltaic performance and stability of quantum dot sensitized solar cells using Mn-ZnSe shell structure with enhanced light absorption and recombination control10.1039/C5NR03291A ↗
7. Efficient solar water-splitting using a nanocrystalline CoO photocatalyst10.1038/nnano.2013.272 ↗
8. Optofluidic lasers with aqueous quantum dots10.1021/acsphotonics.5b00211 ↗
9. Semiconductor clusters, nanocrystals, and quantum dots10.1126/science.271.5251.933 ↗
10. Mercaptopropionic acid-capped Mn 2+: ZnSe/ZnO quantum dots with both downconversion and upconversion emissions for bioimaging applications10.1039/C4NR03490B ↗
11. Design of new quantum dot materials for deep tissue infrared imaging10.1016/j.addr.2012.08.016 ↗
12. Colloidal silicon quantum dots: from preparation to the modification of self-assembled monolayers (SAMs) for bio-applications10.1039/C3CS60353A ↗
13. Some aspects of quantum dot toxicity10.1039/c1cc10692a ↗
14. Nanocrystalline Cr2+-doped ZnSe nanowires laser10.1021/nl304066h ↗
15. ZnSe nanowires and partially hollow nanotubes synthesized by femtosecond laser ablation in liquid10.1246/cl.160297 ↗
16. Femtosecond laser ablation of highly oriented pyrolytic graphite: a green route for large-scale production of porous graphene and graphene quantum dots10.1039/C3NR05572H ↗
17. Free silver nanoparticles synthesized by laser ablation in organic solvents and their easy functionalization10.1021/la0637061 ↗
18. Enhancement of band edge luminescence in ZnSe nanowires10.1063/1.2362930 ↗
19. Synthesis of CdSe/ZnSe quantum dots passivated with a polymer for oxidation prevention10.1016/j.surfcoat.2014.05.061 ↗
20. Preparation and characterization of water-soluble ZnSe:Cu/ZnS core/shell quantum dots10.1016/j.apsusc.2013.04.174 ↗
21. Microwave-assisted aqueous synthesis of transition metal ions doped ZnSe/ZnS core/shell quantum dots with tunable white-light emission10.1016/j.apsusc.2015.05.178 ↗
22. Synthesis of ZnSe nanocrystals (NCs) using a rapid microwave irradiation method and investigation of the effect of copper (Cu) doping on the optical properties10.1016/j.apsusc.2014.08.091 ↗
23. Femtosecond laser-induced formation of wurtzite phase ZnSe nanoparticles in air10.1155/2012/278364 ↗
24. Laser ablation in liquids: applications in the synthesis of nanocrystals10.1016/j.pmatsci.2006.10.016 ↗
25. Preparation of functional nanomaterials with femtosecond laser ablation in solution10.1016/j.jphotochemrev.2013.08.002 ↗
26. Fabrication of paclitaxel nanocrystals by femtosecond laser ablation and fragmentation10.1002/jps.22335 ↗
27. Luminescent CdSe quantum dot doped stabilized micelles10.1021/nl025767z ↗
28. Nano-encapsulated PCM via pickering emulsification10.1038/srep13357 ↗
29. White-light emission from organics-capped ZnSe quantum dots and application in white-light-emitting diodes10.1063/1.1886894 ↗
30. High efficiency and nearly cubic power dependence of below-band-edge photoluminescence in water-soluble, copperdoped ZnSe/ZnS Quantum dots10.1364/OE.16.005715 ↗
31. Origin of the red luminescence band in photoluminescence spectra of ZnSe nanowires10.1063/1.2457190 ↗
32. Sze · 2012
33. Surface photoluminescence emission of ZnO nanorod arrays: experimental and first-principles investigation10.1021/jp106646e ↗
34. Effects of annealing on the photoluminescence of ZnSe nanorods coated with Au10.1016/j.matchemphys.2013.10.007 ↗
35. Optical properties of copper indium diselenide near the fundamental absorption edge10.1103/PhysRevB.33.7160 ↗
36. Redirecting focus in CuInSe 2 research towards selenium-related defects10.1103/PhysRevB.86.165115 ↗
37. Femtosecond laser micromachining in transparent materials10.1038/nphoton.2008.47 ↗
38. Femtosecond laser fabrication of cavity microball lens (CMBL) inside a PMMA substrate for super-wide angle imaging10.1002/smll.201403419 ↗
39. Bright, efficient, and color-stable violet ZnSe-based quantum dot light-emitting diodes10.1039/C4NR06593J ↗