Influence of Bath Temperature and Deposition Time on Topographical and Optical Properties of Nanoparticles ZnS Thin Films Synthesized by a Chemical Bath Deposition Method

Table 4

The values of energy gap , single oscillator energy (), dispersion energy (), and refractive index () for the ZnS films deposited at different times: 20, 30, 40, and 50 min.

Deposition times (min)	(eV)	(eV)	(eV)
20	4.05	4.06 (≈)	1.23	1.14
30	4.01	5.53 (=1.37 )	2.25	1.18
40	3.99	5.6 (=1.4 )	4.48	1.34
50	3.97	5.7 (=1.44 )	8.76	1.59