Figure 4

(a) XPS spectra of the deconvoluted O 1s of the IZO (0% ~ 5%) NRs. Schematic illustration of the formation mechanism of oxygen vacancy in (b) UZO and IZO system.
(a) XPS spectra of the deconvoluted O 1s of the IZO (0% ~ 5%) NRs. Schematic illustration of the formation mechanism of oxygen vacancy in (b) UZO and IZO system.