Speaker
Description
This work studied the structural and luminescent properties of CsVO3 crystals synthetised by the Solid State Reaction, and the effect of the silica coated of the cesium metavanadate (CsVO3/SiO2) on the properties described above. The Solid State Reaction is a versatile and eco-friendly technique potentially applicable in the industry. The X-Ray Diffraction patterns shows that the crystalline structure is the characteristic of the CsVO3 for the crystals with and without silica coated. The excitation spectra of CsVO3 and CsVO3/SiO2 (from 200 nm to 400 nm) show that the band has the maximum at 323 nm, this absorption band corresponding to 1A1 → 1T2 transition associated to [VO4]3-. While the emission spectra from 400 nm to 800 nm, show that the band has the maximum at 535 nm, the band emission in the PL spectra is made up of 3T1 → 1A1 (548 nm) and 3T2 → 1A1 (486 nm) transitions.
This work was supported by
Benemérita Universidad Autónoma de Puebla
Reference
Luo, J., Yang, A., Xie, Z., Huang, J., Zuo, X. (2021). Preparation, optical properties and first principle calculation of CsV O3. Journal of Luminescence, 229, 117658.
| Keywords | Cesium Metavanadate, Solid State Reaction, Luminescent Properties |
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