Tunable emission of LiCa3MgV3O12:Bi3+ via energy transfer and changing excitation wavelength
| Autor: | Chenxing Liao, Zhiyang Luo, Yongchun Ren, Tao Chen, Renping Cao, Yimin Guo, Yuanxiu Ye |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering Doping Analytical chemistry Phosphor 02 engineering and technology Crystal structure 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Ion Wavelength Mechanics of Materials General Materials Science Chromaticity 0210 nano-technology Luminescence Excitation |
| Zdroj: | Materials Research Bulletin. 111:87-92 |
| ISSN: | 0025-5408 |
| DOI: | 10.1016/j.materresbull.2018.11.011 |
| Popis: | LiCa3MgV3O12:Bi3+ phosphor is successfully synthesized by the high-temperature solid-state reaction method in air. The crystal structures and luminescence properties are investigated. Excitation/emission bands of LiCa3MgV3O12:Bi3+ phosphor show red-shift with increasing the monitored/excitation wavelengths from short to long. The doping of Bi3+ ion can result in the host LiCa3MgV3O12 lattice distortion and the energy transfer (ET) from VO43− to Bi3+. The tunable emission of LiCa3MgV3O12:Bi3+ phosphor from blue-green to yellow can be observed with increasing Bi3+ concentration from 0 to 8 mol%. The chromaticity coordinates of LiCa(3-x)MgV3O12:xBi3+ phosphors can change from (0.2393, 0.3260) to (0.4358, 0.4472) with increasing Bi3+ concentration from 0 to 8 mol%. The existence of VO43− → Bi3+ ET in LiCa3MgV3O12:Bi3+ phosphor is indicated by the luminescence properties. The luminous mechanism of LiCa3MgV3O12:Bi3+ phosphor is explained by the configurational coordinate diagrams of VO43− and Bi3+. The experimental results are helpful for the luminescence property researches of other Bi3+-doped luminescence materials. |
| Databáze: | OpenAIRE |
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