Microstructural, optical and Raman properties of Zn1-xCoxO nanoparticles for optoelectronics device applications

Undoped and cobalt doped ZnO nanoparticles have been synthesized using the co-precipitation method. Phase identification, morphological and quantitative analysis is carried out with the help of X-ray diffraction and FESEM-EDS analysis. As per the XRD results, samples have polycrystalline nature with a hexagonal wurtzite structure. The crystallite size has been increased with cobalt incorporation. FESEM analysis showed agglomerated particles. The significant change in morphology demonstrates successful doping into ZnO lattice. Redshift is observed in the absorbance peak. Raman spectra confirm the formation of wurtzite ZnO with the existence of all the characteristic peaks.

Automated summary

Undoped and cobalt-doped ZnO nanoparticles were synthesized using the co-precipitation method. XRD and FESEM-EDS analysis was conducted for phase identification, morphological, and quantitative analysis. The XRD results showed that the samples had a polycrystalline nature with a hexagonal wurtzite structure, and the crystallite size increased with cobalt incorporation. FESEM analysis revealed agglomerated particles, indicating successful doping. A redshift in the absorbance peak was observed. Raman spectra confirmed the formation of wurtzite ZnO with all characteristic peaks.