Effect of Cadmium Concentration on Structural, Optical, and Electrical Properties of Cu₂Zn_1−xCd_xSnS₄ 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.