Abstract
In dye-sensitized solar cell (DSSC) application, the particulate morphologies of photo-anode facilitate efficient dye loading and thus lead to better photo-conversion efficiency than their thin film counterpart. However, till date, the electronic and optical properties as well as the DSSC application of F doped ZnO (FZO) particles as photo-anode material is hardly found in the open literature. Herein, crystalline nature, morphology evolution, optical properties and dye-sensitized solar cell performance of wet chemically prepared ZnO and FZO (dopant level 1–4 mol%) particles are studied. It is found that F doping modulates significantly the ZnO morphology which in turn results the maximum dye adsorption as well as best photo-conversion efficiency at optimum dopant concentration. In particular, when 3 mol% F is doped in ZnO, the photo-conversion efficiency for DSSC application reaches maximum. An attempt is made here to correlate the structural features with the photo-voltaic performances of ZnO and FZO.
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