Morphological, Structural, and Electrical Characterization of Sol-Gel-Synthesized ZnO Nanorods

Table 3

Energy gaps, calculated refractive indices of nanostructure ZnO using Ravindra et al. [46], Hervé and Vandamme [47], and Ghosh et al. [48] models corresponding to optical dielectric constant.

Energy (eV)	𝑛	𝜀∞
3.2459, 3.44 [49],; 1.57 [50], 0.73 [51],; 0.88 [52], 2.26 [53]	2.0355 [46], 2.27764 [47],; 2.32 [48], 2.10 [54]	4.143 [46], 5.187 [47],; 5.38 [48]