Fig. 5
(a) UV–Vis absorption spectra of pure PVA, S1, S2, and S3. (b) Absorption coefficient (α) versus photon energy (hν), demonstrating enhanced light absorption with increasing ZTO content.
Fig. 5 | Scientific Reports
(a) UV–Vis absorption spectra of pure PVA, S1, S2, and S3. (b) Absorption coefficient (α) versus photon energy (hν), demonstrating enhanced light absorption with increasing ZTO content.
