Structural and Thermal Studies of ZnS and CdS Nanoparticles in Polymer Matrices

Table 2

Optical band gaps and blue shifts of absorption band of the metal sulfides/polymer nanocomposites.

Sample	Wavelength (nm)	Band gap (eV)	Blue shift (eV)
ZnS/PMMA	316	3.92	0.26
CdS/PMMA	457	2.71	0.31
ZnS/PVA	314	3.95	0.29
CdS/PVA	441	2.82	0.42
ZnS/PVP	327	3.79	0.13
CdS/PVP	438	2.83	0.43