ZrO2:Sm3+ nanophosphor: synthesis, Rietveld refinement, optical and thermoluminescent properties
| Autor: | S.J. Dhoble, K. Munirathnam, T. V. M. Sreekanth, H.B. Ramalingam, K. Janaki, S. Ponkumar, D. Prakashbabu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Photoluminescence Materials science Rietveld refinement Doping Analytical chemistry 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology 01 natural sciences Thermoluminescence Fluence Ion Transmission electron microscopy 0103 physical sciences General Materials Science Irradiation 0210 nano-technology |
| Zdroj: | Applied Physics A. 124 |
| ISSN: | 1432-0630 0947-8396 |
| Popis: | We have synthesized undoped and Sm3+ ions doped ZrO2 nanophosphors by solution combustion method. These nanophosphors crystallized in cubic structure. Rietveld refinement of the samples was performed to estimate lattice parameters. Spherical particles with the sizes of 10–25 nm were observed by transmission electron microscopy. Photoluminescence and thermoluminescence (TL) properties of samples were investigated. Under 400 nm excitation, the nanophosphors have intense red emission at 600 nm. The color coordinates (0.67, 0.33) were located in the red region of CIE diagram. TL properties of nanophosphors were studied by exposing the samples to γ-rays. 5 mol% Sm3+ doped ZrO2 nanophosphor has shown maximum TL intensity after γ-irradiation. To test suitability of the nanophosphors for practical application in dosimetry, the 5 mol% Sm3+ doped ZrO2 sample was irradiated by 14 MeV electron beam in various electron fluence ranging from 100 to 900 Gy and their TL response was recorded. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink