Table 3.
Summary of PL spectra and their Crystallite Size of undoped NiCr2O4(a-Pure) and La doped NiCr2O4(b-0.01; c-0.02; d-0.03; and e−0.04).
| Samples | PL spectra peaks | Crystallite size (nm) |
|---|---|---|
| a | 532,543 | 24.69 |
| b | 535,546 | 22.17 |
| c | 537,548 | 20.94 |
| d | 539,549 | 19.22 |
| e | 541,543 | 16.19 |
The crystallite size from XRD was calculated from X-ray line broadening of the diffraction line using the Scherer equation and PL spectra by fitting the measured peaks with two Gaussian curves in order to find the true peak position.