Synthesis and Study of CdS Thin Films Prepared with Different KMnO₄ Activation Time

Table 1

The calculated grain size, refractive index, extinction coefficient, and thickness of CdS thin film prepared by CBD.

KMnO4 activation time	2θ (°)	FWHM (°)	-spacing (Å)	lines/m^2	lattice strain; ×10^−2	(nm)	(eV)	(nm)		Average size of particle (nm)
5	26.77	0.4	3.272	2.39	9.72	20.42	2.45	391	1.69	102.5
10	26.79	—	3.325	—	—	—	2.53	158	2.45	91.07
15	26.72	0.08	3.334	0.09	1.94	102.11	2.49	263	2.48	91.11
20	26.79	0.21	3.324	0.66	5.10	38.90	2.42	327	2.14	90.77
25	26.70	0.70	3.340	7.34	17.02	11.67	2.30	305	2.34	89.14
30	26.68	0.18	3.337	1.60	4.37	24.95	2.40	200.4	3.00	81.25