الفهرس 
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Abstract
n this work, (pure ZnSnO3, Ca/Mn-ZTO, and Ca/MnCr-ZTO)
perovskite compounds were prepared using Co-precipitation. The
structure, morphology, optical, dielectric, and photoelectrochemical
properties of the prepared compounds were investigated using x-ray
diffraction (XRD), field emission scanning electron microscopy
(FESEM), ultraviolet, visible, near-infrared spectroscopy (UV-Vis-NIR
spectra), electrochemical impedance spectroscopy (EIS) and I-V
characteristics measurements. The results were illustrated and compared
with previous work.