Influence of gamma rays on the optical characteristics of CPVC/Ag nanocomposite film

Figures & data

Figure 1. Ag NPs TEM micrograph.

Figure 2. The absorbance spectra of the treated and non-treated CPVC/Ag films.

Figure 3. A plot of (αhν)² versus hν for the treated and non-treated CPVC/Ag films.

Figure 4. A plot of (αhν)^0.5 versus hν for the treated and non-treated CPVC/Ag films.

Figure 5. A plot of (αhν)^2/3 versus hν for the treated and non-treated CPVC/Ag films.

Figure 6. E_g and E_u variation with gamma dosage.

Figure 7. A plot of optical dielectric loss versus hν for the treated and non-treated CPVC/Ag films.

Table 1. E_g (from ε^″ and Tauc’s model versus hυ) calculated for the non-treated and treated CPVC/NCP films

		Eg from Tauc’s Model (eV)
Dose (kGy)	Eg from ε^″vs. hν (eV)	Eg ^2	Eg 1/2	Eg ^2/3
0	4.15	4.14	3.51	3.71
25	4.13	4.06	3.50	3.68
50	4.10	4.01	3.48	3.66
75	4.05	3.99	3.46	3.65
125	4.00	3.95	3.45	3.61
150	3.95	3.92	3.43	3.60
200	3.90	3.87	3.42	3.57

Figure 8. The refractive index spectra for the treated and non-treated CPVC/Ag films.

Figure 9. A plot of optical dielectric constant versus hν for the treated and non-treated CPVC/Ag films.

Figure 10. The transmission spectra for the treated and non-treated CPVC/Ag films.

Table 2. The chromaticity coordinates and tristimulus values for CPVC/NCP films as a function of gamma dosage.

	Tristimulus values chromaticity coordinates
Dose (kGy)	X	Y	Z	x	y	z
0	6.10	5.82	4.17	0.379	0.362	0.259
25	8.38	8.06	6.33	0.368	0.354	0.278
50	10.64	10.29	8.51	0.361	0.350	0.289
75	16.46	16.06	13.31	0.359	0.350	0.290
125	26.16	26.16	22.39	0.350	0.350	0.300
150	30.52	30.82	26.81	0.346	0.350	0.304
200	34.28	34.83	32.25	0.338	0.344	0.318

Figure 11. Color intercepts variation with gamma dosage.

Figure 12. Color intensity variation with gamma dosage.