Structural, Optical, Electrical, and Photoresponse Properties of Postannealed Sn-Doped ZnO Nanorods
Table 1
Energy gaps (), calculated refractive indices () and optical dielectric constant of nanostructure Sn-ZnO using Ravindra et al. [35] Hervé and Vandamme [36], and Ghosh et al. [37] models.
Annealing temperatures (°C)
Band gap energy (eV)
Refractive index (n)
Optical dielectric constant
150
3.18, 3.44a, 1.57b, 0.73c, 0.88d, 2.26e
2.0764f, 2.2960g, 2.3335h, 2.008i
4.3114f, 5.2716g, 5.4452h
350
3.21
2.0578f, 2.2876g, 2.3274h
4.2345f, 5.2331g, 5.4167h
500
3.33
1.9834f, 2.2546g, 2.3037h
3.9338f, 5.0832g, 5.3070h
Huemmer [39]—Exp. Charifi et al. [41]—Theor. Schleife et al. [42]—Theor. Xu and Ching [43]—Theor. Schröer et al. [44]—Theor. Ravindra et al. [35]. Hervé and Vandamme [36]. Ghosh et al. [37]. Weast [40]—Exp.