Green Emission in Thermally Stable Er<sup>3+</sup> Doped Lead-Free Perovskite Phosphor for Solid-State Lighting and Optical Thermometry Applications
CaTiO<sub>3</sub>:xEr<sup>3+</sup> <underline>(0.1≤x≤7 mole%)</underline> phosphor materials were meticulously prepared through the solution combustion method. Comprehensive analyses employing Powder X-ray Diffraction (P...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10506937/ |
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| Summary: | CaTiO<sub>3</sub>:xEr<sup>3+</sup> <underline>(0.1≤x≤7 mole%)</underline> phosphor materials were meticulously prepared through the solution combustion method. Comprehensive analyses employing Powder X-ray Diffraction (PXRD), Field Emission Scanning Electron Microscopy (FESEM), and Fourier Transform Infrared Spectroscopy (FTIR) were conducted to investigate the phase, morphology, and vibrational characteristics of the synthesized phosphors. A detailed luminescence study was undertaken using photoluminescence spectroscopy, revealing distinctive 4f-4f transitions associated with Er<sup>3+</sup> in both excitation and emission spectra. The application of Dexter's theory provided insights into the quenching mechanism inherent in CaTiO<sub>3</sub>:Er<sup>3+</sup> phosphors. Photometric studies were carried out to evaluate the suitability of the synthesized material for solid-state lighting applications. Furthermore, to assess the thermal stability of the phosphor material, the activation energy was computed. The fluorescence intensity ratio of thermally coupled energy levels of Er<sup>3+</sup> ion was utilized to assess the temperature-sensing capabilities of the synthesized material. This material may be suitable for solid-state lighting and optical thermometry applications. |
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| ISSN: | 1943-0655 |