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   simple preparation as well as structural, microstructural and optical properties of cu doped zno nanostructures  
   
نویسنده ghafouri kesbi reavan ,bahiraei hamed ,ghanbari davood
منبع journal of nanostructures - 2022 - دوره : 12 - شماره : 1 - صفحه:28 -33
چکیده    In this study, the nanostructures of zn1-xcuxo with x=0.000, 0.025, 0.050 and 0.075 were successfully synthesized by sol-gel auto combustion method using glycine as a fuel. the prepared powders were calcined at 300 °c. the effect of cu doping on structural and optical properties of powders was studied by x-ray diffraction (xrd), scanning electron microscopy (sem), uv-visible absorption spectroscopy (uv-vis) and photoluminescence (pl). the xrd patterns showed all samples have wurtzite structure. there is an extra peak belong to cuo at 2θ=38˚ in the xrd pattern of the sample with x=0.075. the average crystal size of the prepared powders is about 29-47 nm. the sem micrographs revealed that all doped nanostructures have leaf-like structure with the thickness about 15-20 nm. absorption spectra showed a red shift and decrease in the band gap in the zn1-xcuxo system. the pl spectra showed that the maximum emission wavelength increases with dopant concentration.
کلیدواژه cu-doped zno ,nanosheets ,nanostructure ,optical absorption ,sol-gel
آدرس malayer university, faculty of science, department of physics, india, malayer university, faculty of science, department of physics, india, arak university of technology, department of science, india
پست الکترونیکی ghanbarichemist@gmail.com
 
     
   
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