%T Development of photo-anodes based on strontium doped zinc oxide-reduced graphene oxide nanocomposites for improving performance of dye-sensitized solar cells
%I Elsevier Ltd
%V 47
%A R. Savari
%A J. Rouhi
%A O. Fakhar
%A S. Kakooei
%A D. Pourzadeh
%A O. Jahanbakhsh
%A S. Shojaei
%P 31927-31939
%K Anodes; Dye-sensitized solar cells; Fourier transform infrared spectroscopy; Graphene; Nanocomposites; Optical properties; Sol-gel process; Strontium compounds; Zinc oxide, Doped ZnO; Dye- sensitized solar cells; Gel process; Optical-; Photo-anodes; Property; Reduced graphene oxides; Sol'gel; Sr doped; ZnO, II-VI semiconductors
%X The goal of this study was to create highly efficient dye-sensitized solar cells (DSSCs) using strontium doped zinc oxide-reduced graphene oxide (Sr-doped ZnO/rGO) nanocomposites. As photo-anodes of DSSCs, ZnO, ZnO/rGO (with weight percent rGO in composites: 0, 0.01, 0.1, 0.5, and 1 wt) and Sr-doped ZnO/rGO (with Zn1-xSrxO nanoparticle stoichiometry: x = 0, 0.02, 0.04, 0.06 and 0.08) nanocomposites were designed and characterized. AFM, FESEM, XRD, EDS, XPS, PL, and FTIR analyses were used to investigate the morphology and structure properties of prepared nanocomposites. UV�vis spectroscopy and photo-electrochemical measurements were used to investigate the efficiency of prepared photo-anodes. The efficiency (η) and short-circuit photocurrent density (JSC) of DSSCs based on Zn0.92Sr0.08O/rGO nanocomposite were 7.98  and 18.4 mA cm�2, respectively. The results showed that doping Sr on ZnO/rGO nanocomposites resulted in a wide bandgap energy and increased the values of η, JSC, IPCE, and photo-anode electron transportability. These findings suggest that Sr-doped ZnO/rGO nanocomposites can provide a novel approach for increasing photo-electrochemical activity in ZnO-based DSSCs. © 2021 Elsevier Ltd and Techna Group S.r.l.
%O cited By 63
%J Ceramics International
%L scholars14250
%D 2021
%R 10.1016/j.ceramint.2021.08.079
%N 22