Effect of Cadmium Concentration on Structural, Optical, and Electrical Properties of Cu2Zn1−xCdxSnS4 Quinternary Alloy Nanofibres, Synthesized by Electrospinning Technique
Table 2
The energy band gaps corresponding to refractive index and optical dielectric constant using Ravindra et al. [51], Hervé and Vandamme [52], and Ghosh et al. [53] of Cu2SnS4 quinternary alloy nanofibres.
Band gap using UV (eV)
Band gap using PL (eV)
0
1.81
1.75
2.95 2.82 2.70
8.70 7.95 7.29
2.83 2.70 2.58
8.00 7.29 6.65
0.2
1.80
1.72
2.97 2.84 2.72
8.82 8.06 7.39
2.85 2.73 2.61
8.12 7.45 6.81
0.4
1.79
1.70
2.99 2.86 2.74
8.94 8.17 7.50
2.87 2.75 2.63
8.23 7.56 6.91
0.6
1.69
1.67
3.01 2.88 2.76
9.06 8.29 7.61
2.89 2.77 2.65
8.35 7.67 7.02
0.8
1.68
1.65
3.04 3.00 2.78
9.24 9.00 7.72
2.91 2.79 2.68
8.46 7.78 7.18
1
1.63
1.61
3.07 3.02 2.81
9.42 9.12 7.89
2.93 2.82 2.71
8.58 7.95 7.34
Ref. [51]; ref. [52]; ref. [53]. refers to Band gap using UV. refers to Band gap using PL.