Abstract
We synthesized facile novel morphology of ZnO as nanobeads and hierarchical nanosheet ball by chemical bath deposition method. The ZnO nanobeads and hierarchical nanosheet ball exhibited band gap of 3.12 and 3.23 eV, respectively. The X-ray diffraction patterns indicated crystal structure of ZnO nanobeads and hierarchical nanosheet ball are same however, sintering induced slight compressive stress on ZnO leads to small shift in diffraction angles. Four fold increase in efficiency was obtained with ZnO hierarchical nanosheet ball as photoanode in DSSC in comparison to ZnO nanobeads.
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