Morphologically Tunable Fabrication of Hematite Nanostructures for Enhanced Photoelectrochemical Performance

Herein, a photoelectrochemical investigation of photoanodes based on hematite nanorods and nanospheres fabricated via hydrothermal technique is reported. The nanostructures have been thoroughly analyzed characterized using field emission scanning electron microscopy (FESEM), X-ray Diffractometer (XRD), UV-Visible spectroscopy, Photoluminescence spectroscopy (PL), photoelectron (XPS). presence oxygen vacancies morphological characteristics Hematite were shown to be directly related their performances. nanorod-based photoanode yields an excellent photocurrent density 1.63 mAcm 2 which was about 4 times greater than the nanosphere-based photoanode. Further showed efficient charge transfer kinetics, increased donor and, photo stability. enhancement in properties can attributed generated provide electrical conductivity better kinetics. results demonstrate that vacancy-rich serve as ideal photoelectrode for enhancing electrochemical nanostructures.