Fig. 5.

(i) Comparative experimental oxide compositions of the magnetron sputtered (A) Ag:PBG and (B) Ga-PBG films and of their corresponding source materials (cathode targets), as estimated based on EDXS-type analyses. The results are presented as mean ± standard error of the mean (n = 4). *Ref. [50]. (ii) XPS spectra of (A′) Ag 3d, (B′) Ga 2p, (C′, D′) P 2p and (E′, F′) O 1s photoelectron core level peaks, indicative of surface bonding state, recorded for the (A′, C′, E′) Ag:PBG and (B′, D′, F′) Ga-PBG PVD films.