EPR Spectroscopy of Different Sol Concentration Synthesized Nanocrystalline-ZnO Thin Films

Figure 4

EPR spectra of nc-ZnO thin films derived from (a) 10 wt.%, (b) 15 wt.%, and (c) 25 wt. % sol and (d) DPPH standard.

(a)

(b)

(c)

(d)