Characterization of Ag-doped ZnO thin films by spray pyrolysis and its using in enhanced photoelectrochemical performances

Effect of doping mediated oxygen vacancies on the charge transfer ability of zinc oxide nanosheets for electrochemical glucose sensing

“…4(d)), the difference between the peaks of Ag3d 5/2 (368.81 eV) and Ag3d 3/2 (374.81 eV) is 6.0 eV, confirming the presence of the purely metallic Ag state in ZnO:Ag5. 64–67 Moreover, the FTIR spectra (Fig. S3†) confirmed the formation of pristine ZnO and the successful incorporation of Ag ions into the ZnO host matrix, as well as the successful immobilization of GOx on the surface of the pristine and Ag-doped ZnO nanosheets (ESI,† section S2.1).…”

“…As listed in Table S2 (ESI†), the decreasing value of R ct revealed the enhancement of electron transfer between the solution and the electrodes, suggesting that doping may enhance the charge transfer ability of ZnO. 65…”

“…As listed in Table S2 (ESI †), the decreasing value of R ct revealed the enhancement of electron transfer between the solution and the electrodes, suggesting that doping may enhance the charge transfer ability of ZnO. 65 Further, as presented in Fig. 5(b), cyclic voltammograms (CVs) of the pristine and Ag-doped ZnO electrodes prepared on ITO substrates were recorded at a scan rate (ν) of 10 mV s −1 .…”

Photoelectrochemical activity of ZnO:Ag/rGO photo-anodes synthesized by two-steps sol-gel method

“…Several strategies attempted to broaden the light-harvesting of ZnO to the visible-light region, including hetero-coupled, [9,10] organic dye sensitization, [11] and noble metal doping. [12][13][14] In this regard, doping ZnO by silver seems to be an efficient approach to expand the lightharvesting of ZnO to the visible-light region, through the efficient surface plasmon resonance. Numerous studies have focused on the elaboration of Ag-doped ZnO and demonstrated the beneficial impact of silver doping to develop a photoanode for water splitting.…”

“…Numerous studies have focused on the elaboration of Ag-doped ZnO and demonstrated the beneficial impact of silver doping to develop a photoanode for water splitting. For example, Karyaoui et al [13] found the enhancement of PEC performance of ZnO electrode after doping by Ag. Furthermore, Congrong Wang et al [15] have prepared Ag/ZnO thin films in two steps.…”