Structural, Optical, Electrical, and Photoresponse Properties of Postannealed Sn-Doped ZnO Nanorods

Table 1

Energy gaps (𝐸_𝑔), calculated refractive indices (𝑛) and optical dielectric constant 𝜀_∞ 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 (𝜀∞)
150	3.18, 3.44^a, 1.57^b, 0.73^c, 0.88^d, 2.26^e	2.0764^f, 2.2960^g, 2.3335^h, 2.008^i	4.3114^f, 5.2716^g, 5.4452^h
350	3.21	2.0578^f, 2.2876^g, 2.3274^h	4.2345^f, 5.2331^g, 5.4167^h
500	3.33	1.9834^f, 2.2546^g, 2.3037^h	3.9338^f, 5.0832^g, 5.3070^h

aHuemmer [39]—Exp.
bCharifi et al. [41]—Theor.
cSchleife et al. [42]—Theor.
dXu and Ching [43]—Theor.
eSchröer et al. [44]—Theor.
fRavindra et al. [35].
gHervé and Vandamme [36].
hGhosh et al. [37].
iWeast [40]—Exp.