Research Article
Optical Properties of Malachite Green Dye Doped SiO2 Glasses: Effect of Transition Metal (Fe-I) Used as a Codopant
| | Sample code | MG conc. (×10−5) M | Fe conc. M |
aPeak abs. WL () nm |
bOscillator strength (f) |
cFWHM () cm−1 |
dAbs. coeff. () M−1cm−1 |
| | FxM1 glass, x = 1–4 |
| | Peak I | | F1M1 | 1 | 0.01 | 443 | 0.556193 | 1608.67 | 8.0034 | | F2M1 | 1 | 0.02 | 442 | 0.579773 | 1676.87 | 8.0034 | | F3M1 | 1 | 0.03 | 447 | 0.552859 | 1599.03 | 8.0034 | | F4M1 | 1 | 0.04 | 448 | 0.993193 | 2872.89 | 8.0026 | | M1 | 1 | 0.00 | 441 | 3.932051 | 11377.46 | 8.0000 |
| | Peak II | | F1M1 | 1 | 0.01 | 582 | 0.013727 | 1351.54 | 0.2351 | | F2M1 | 1 | 0.02 | 580 | 0.013571 | 1336.21 | 0.2351 | | F3M1 | 1 | 0.03 | 581 | 0.013726 | 1351.46 | 0.2351 | F4M1
| 1 | 0.04 | 579 | 0.013773 | 1369.46 | 0.2328 | | M1 | 1 | 0.00 | 561 | 0.070586 | 7030.67 | 0.2324 |
| FxM4 glass, x = 1–4
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| | Peak I | | F1M4 | 50 | 0.01 | 450 | 0.534699 | 3238.52 | 3.8219 | | F2M4 | 50 | 0.02 | 456 | 0.695247 | 4210.91 | 3.8219 | | F3M4 | 50 | 0.03 | 422 | 0.647504 | 3921.74 | 3.8219 | | F4M4 | 50 | 0.04 | 466 | 0.43928 | 2661.22 | 3.8210 | | M4 | 50 | 0.00 | 447 | 7.633639 | 46257.75 | 3.8200 |
| | Peak II | | F1M4 | 50 | 0.01 | 608 | 0.000186 | 1269.53 | 0.0035 | | F2M4 | 50 | 0.02 | 608 | 0.000259 | 1761.06 | 0.0035 | | F3M4 | 50 | 0.03 | 586 | 0.000357 | 2430.14 | 0.0035 | | F4M4 | 50 | 0.04 | 594 | 0.000048 | 923.38 | 0.0012 | | M4 | 50 | 0.00 | 591 | 0.000167 | 4838.51 | 0.0008 |
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Peak absorption wavelength (); boscillator strength (f) of absorption bands; cFWHM () of bands; and dmolar absorption coefficient [] of MG in Fe-MG doped SiO2 sol-gel glasses.
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