Theoretical study by analytical equations of optical properties of the phosphors Zn2SnO4 codoped with Cr3+ and (Al3+ or Eu3+) via the crystal field control
Source abstract
Abstract
Abstract The phenomenon of persistent luminescence in the phosphors Zn2SnO4 doped by Cr3+ and codoped by Al3+ or Eu3+ is related to the energy levels of the doping transition ions Cr3+ and rare earth ions Eu3+, the concentration of Al3+ substituting Zn and Sn, the intrinsic defects and the energy bands of the Zn2SnO4 matrix. To fully understand the procedure of persistent luminescence in these phosphors, we firstly determine the role of the Cr3+ ions in this process. For this reason, a crystal-field theory, using the Racah tensor algebra method, of the optical region associated to the transitions between the Stark levels of Cr3+ in these phosphors was performed. We examine then the influence by codoping with Al3+ and Eu3+ on the persistent luminescence process. In the second step, we analyze the role of the traps after discussing some of these properties. Finally, we propose an energy transfer mechanism from PLE, PL spectra and TL curves.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Radiation Detection and Scintillator Technologies · Quantum optics and atomic interactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Tailoring of the trap distribution and crystal field in Cr3+-doped non-gallate phosphors with near-infrared long-persistence phosphorescence
2. Co-dopant influence on near-infrared luminescence properties of Zn 2SnO4:Cr3+, Eu3+ ceramic discs10.1016/j.jallcom.2016.06.041 ↗
3. A clearer vision for in vivo imaging10.1038/86684 ↗
4. Deep-tissue anatomical imaging of mice using carbon nanotube fluorophores in the second near-infrared window10.1073/pnas.1014501108 ↗
5. Enhanced near-infrared emission by co-doping Ce3+ in Ba2Y(BO3)2Cl:Tb3+, Yb3+ phosphor10.1039/C5RA02728D ↗
6. Sunlight-activated long-persistent luminescence in the near-infrared from Cr3+-doped zinc gallogermanates10.1038/nmat3173 ↗
7. The in vivo activation of persistent nanophosphors for optical imaging of vascularization, tumours and grafted cells, C10.1038/nmat3908 ↗
8. Lanthanide-doped luminescent nanoprobes: controlled synthesis, optical spectroscopy, and bioapplications10.1039/c3cs60060b ↗
9. Storage of visible light for long-lasting phosphorescence in chromium-doped zinc gallate10.1021/cm403050q ↗
10. Photostimulated near-infrared persistent luminescence as a new optical read-outfrom Cr3+-doped LiGa5O8
11. Tunable trap depth inZn(Ga1−xAlx)2O4:Cr,Bi red persistent phosphors: considerations of high-temperature persistent luminescence and photostimulated persistent luminescence10.1039/c3tc31462f ↗
12. Long persistent and photo-stimulated luminescence in Cr3+-doped Zn-Ga-Sn-O phosphors for deep and reproducible tissue imaging10.1039/c4tc00014e ↗
13. A bifunctional Cr/Yb/Tm:Ca3Ga2Ge3O12 phosphor with near-infrared long-lasting phosphorescence and upconversion luminescence10.1021/ic501238u ↗
14. Bright persistent ceramic phosphors of Ce3+-Cr3+-codoped garnet able to store by blue light10.1063/1.4868138 ↗
15. Persistent luminescence of AB2O4: Cr3+ (A= Zn, Mg, B= Ga, Al) spinels: new biomarkers for in vivo imaging10.1016/j.optmat.2014.06.020 ↗
16. Band-gap variation and a self-redox effect induced by compositional deviation in ZnxGa2O3+x:Cr3+ persistent phosphors10.1039/c4tc00369a ↗
17. Long persistent and photo-stimulated luminescence in Cr3+-doped Zn–Ga–Sn–O phosphors for deep and reproducible tissue imaging10.1039/c4tc00014e ↗
18. Optical properties of the phosphors Zn2SnO4:Cr3+ with near-infrared long-persistence phosphorescence for bio-imaging applications10.1016/j.jlumin.2020.117563 ↗
19. Theoretical study of the electronic structure of a tetragonal chromium (III) complex10.1016/j.jlumin.2011.05.044 ↗
20. Electronic structure and Fano antiresonance of chromium Cr(III) ions in alkali silicate glasses10.1016/j.jlumin.2015.01.047 ↗
21. Fano's antiresonance and crystal-field study of Cr3+ in metaphosphate glasses10.1016/j.jlumin.2016.08.034 ↗
22. Study with analytical equations of absorption spectra containing interference dips in fluoride glasses doped with Cr 3+10.1021/acs.jpcb.6b03230 ↗
23. Crystal field study of Chromium(III) ions doped antimony phosphate glass: fano's antiresonnance and Neuhauser models10.1007/s12648-018-1212-6 ↗
24. Griffithb · 1961
25. Sugano · 1970 · 106
26. Ligand field analysis of the 3dN ions at orthorhombic or higher symmetry sites10.1016/0097-8485(92)80004-J ↗
27. Energies of N equivalent electrons expressed in terms of two-electron energies and independent three-electron parameters: a new complete set of orthogonal operators. II. Application to 3dN configurations10.1088/0022-3700/17/20/010 ↗
28. Correlation between experimental spectroscopic study and crystal-field calculations of Co2+ ions in α-ZnAl2S4spinel10.1016/j.jlumin.2018.10.047 ↗
29. Photostimulated near-infrared persistent luminescence as a new optical read-out from Cr3+-doped LiGa5O810.1038/srep01554 ↗
30. Motloung · Ceram. Int. · 2015 · 41 · 677610.1016/j.ceramint.2015.01.124 ↗
31. Spectroscopic and laser properties of Ce3+-Cr3+-Nd3+ co-doped fluoride phosphate and phosphate glasses10.1016/0022-3093(94)90036-1 ↗
32. Jorgensen · 1963 · 113
33. Solution combustion synthesis, photoluminescence and X-ray luminescence of Eu3+-doped LaAlO3 nanophosphors10.1016/j.ceramint.2015.10.032 ↗
34. Lanthanide ions as spectral converters for solar cells10.1039/b913877c ↗
35. Persistent luminescence in Eu2+-doped compounds: a review10.3390/ma3042536 ↗
36. Optically stimulated persistent luminescence of europium-doped LaAlO3 nanocrystals10.1039/C5CP00234F ↗
37. Electronic structure of Co-doped ZnO nanorods
38. Theoretical investigation of the cathodoluminescence spectra of Co-doped ZnO nanowires10.1016/j.jlumin.2018.02.018 ↗