Research on a new type of near-infrared phosphor Li2MgZrO4:Cr3+- synthesis, crystal structure, photoluminescence and thermal stability
Source abstract
Abstract
Abstract Broadband NIR phosphors are urgently needed in NIR-LED and medical imaging. In this paper, a new type of near-infrared phosphor Li2Mg1-0.5xZr1-0.5xO4: xCr3+(0.6% ≤ x ≤ 1.6%) was synthesized by high temperature solid phase method. The optimal doping concentration of the phosphor is x = 1.0%, which exhibits broadband emission in the range of 600–1200 nm, and reaches the full width at half maximum (FWHM) of 205 nm under 462 nm blue excitation. The X-ray diffraction characterization results of the Li2Mg1-0.5xZr1-0.5xO4: xCr3+(0.6% ≤ x ≤ 1.6%) sample are refined and analyzed, and the doped sample is basically consistent with the pure phase. The sample was characterized by diffuse emission, and it was found that the sample matrix had intrinsic absorption. The thermal stability of Li2Mg0.995Zr0.995O4:1.0%Cr3+ phosphor was studied, and its relative intensity was 51.3% of room temperature at 100 °C. The results show that this new type of ultra-wide near-infrared emitting phosphor has application potential in medical imaging and PC-LED directions.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (41)
Show source-provided references
1. A generic approach towards afterglow luminescent nanoparticles for ultrasensitive in vivo imaging10.1038/s41467-019-10119-x ↗
2. Imaging and therapeutic applications of persistent luminescence nanomaterials10.1016/j.addr.2018.10.015 ↗
3. The in vivo activation of persistent nanophosphors for optical imaging of vascularization, tumours and grafted cells10.1038/nmat3908 ↗
4. Near-infrared spectroscopy and hyperspectral imaging: non-destructive analysis of biological materials[J]10.1039/C4CS00062E ↗
5. NIR spectroscopy applications for internal and external quality analysis of citrus fruit-A review10.1007/s11947-011-0697-1 ↗
6. On-line application of near infrared (NIR) spectroscopy in food production[J]10.1016/j.tifs.2015.10.002 ↗
7. Sunlight-activated long-persistent luminescence in the near-infrared from Cr3+-doped zinc gallogermanates10.1038/nmat3173 ↗
8. Cr3+-Doped broadband NIR garnet phosphor with enhanced luminescence and its application in NIR spectroscopy10.1002/adom.201900185 ↗
9. Fluorescence property of novel near-infrared phosphor Ca2MgWO6:Cr3+[J]10.1016/j.jallcom.2017.10.036 ↗
10. Hundreds of times of photo-stimulation with low energy light as a new reused bio-imaging phosphor from Cr3+, Si4+-doped Y3Ga5O1210.1016/j.jlumin.2019.116871 ↗
11. Enhancing solar cell efficiency: the search for luminescent materials as spectral converters[J]10.1039/C2CS35288E ↗
12. Lanthanide NIR luminescence for telecommunications, bioanalyses and solar energy conversion10.1016/S1002-0721(09)60208-8 ↗
13. Recent developments in rare-earth doped materials for optoelectronics10.1016/S0079-6727(02)00014-9 ↗
14. Super broadband near-infrared phosphors with high radiant flux as future light sources for spectroscopy applications10.1021/acsenergylett.8b01643 ↗
15. Toward rechargeable persistent luminescence for the first and third biological windows via persistent energy transfer and electron trap redistribution10.1021/acs.inorgchem.8b00218 ↗
16. Near-infrared luminescence and quantum cutting mechanism in CaWO4:Nd3+, Yb3+10.1007/s00340-013-5342-4 ↗
17. Tailoring of the trap distribution and crystal field in Cr3+-doped non-gallate phosphors with near-infrared long-persistence phosphorescence10.1038/am.2015.38 ↗
18. Near-infrared luminescence and color tunable chromophores based on Cr3+-doped mullite-type Bi2(Ga,Al)4O9 solid solutions10.1021/ic502779d ↗
19. A brief review on red to near-infrared persistent luminescence in transition-metal-activated phosphors10.1016/j.optmat.2014.05.035 ↗
20. Review: down conversion materials for solid-state lighting10.1111/jace.12943 ↗
21. Highly efficient and thermally stable Cr3+-activated silicate phosphors for broadband near-infrared LED applications10.1016/j.cej.2019.123108 ↗
22. Two-site occupation for exploring ultra-broadband near-infrared phosphor—double-perovskite La2MgZrO6:Cr3+10.1021/acs.chemmater.9b01587 ↗
23. Temperature dependent Cr3+ photoluminescence in garnets of the type X3Sc2Ga3O12 (X = Lu, Y, Gd, La)10.1016/j.jlumin.2018.05.076 ↗
24. Strategies to approach high performance in Cr3+-doped phosphors for high-power NIR-LED light sources10.1038/s41377-020-0326-8 ↗
25. Highly efficient near-infrared phosphor LaMgGa11O19:Cr3+10.1039/D0QI00063A ↗
26. Tuning of photoluminescence by cation nanosegregation in the (CaMg)x(NaSc)(1-x)Si2O6 solid solution10.1021/jacs.5b12788 ↗
27. Chemical unit cosubstitution and tuning of photoluminescence in the Ca2(Al(1-x)Mgx)(Al(1-x)Si(1+x))O7:Eu2+ phosphor10.1021/jacs.5b08315 ↗
28. Evolution of structure and photoluminescence by cation cosubstitution in Eu2+-doped (Ca(1-x)Lix)(Al(1-x)Si(1+x))N3 solid solutions10.1021/acs.inorgchem.5b02845 ↗
29. New family of phases, Li2MXO4: X= Zr, Hf; M= Mg, Mn, Fe, Co, Ni, Cu, Zn with α-LiFeO2 and related structures
30. Luminescence properties of high thermal stability Sr2LaNbO6:xLn3+(Ln3+=Eu3+/Sm3+) phosphors with double-perovskite structures10.1016/j.optmat.2019.109428 ↗
31. Two-site Cr3+ occupation in the MgTa2O6:Cr3+ phosphor toward broad-band near-infrared emission for vessel visualization10.1039/D0TC01951H ↗
32. Kubelka—munk theory and the prediction of reflectance
33. Multiplets of transition-metal ions in crystals
34. Design and control of the luminescence of Cr3+-doped phosphors in the near-infrared I region by fitting the crystal field10.1021/acs.cgd.8b00273 ↗
35. Crystal structure, and enhanced luminescence of garnet-type Ca3Ga2Ge3O12:Cr3+ by codoping Bi3+10.1111/jace.13553 ↗
36. Synthesis and near-infrared luminescence of La3GaGe5O16:Cr3+ phosphors10.1039/C4RA09793A ↗
37. Broadband near‐infrared emission enhancement in K2Ga2Sn6O16:Cr3+ phosphor by electron‐lattice coupling regulation10.1111/jace.17157 ↗
38. High-temperature luminescence properties of Eu2+-activated alkali halide phosphor materials10.1007/BF00719967 ↗
39. Energy of the first 4f7→4f65d transition of Eu2+ in inorganic compounds10.1016/S0022-2313(03)00078-4 ↗
40. Ca2Al3O6F:Eu2+: a green-emitting oxyfluoride phosphor for white light-emitting diodes10.1039/c2jm32733c ↗
41. High efficiency blue-emitting phosphor: Ce3+-doped Ca5.45Li3.55(SiO4)3O0.45F1.55 for near UV-pumped light-emitting diodes10.1039/c2jm34146h ↗