| DSC | differential scanning calorimetry |
| ET | energy transfer |
| FTIR | Fourier transform infrared spectroscopy |
| IR | Infrared |
| NIR | near infrared |
| PL | photoluminescence |
| PSB | phonon side bands |
| PSHB | persistent spectral hole burning |
| RE | rare earth |
| TEOS | Tetraethyl orthosilicate, formally named tetraethoxysilane |
| TFA | trifluoroacetic acid |
| TG | thermogravimetry |
| TEM | Transmission electronmicroscopy |
| TL | Thermoluminescence |
| TMOS | Tetramethyl orthosilicate |
| UC | up-conversion |
| UV | ultraviolet |
| XRD | X-ray diffraction |
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