Investigation on structural, photoluminescence and magnetic behavior of Mn–ZnO nanoparticles via solvothermal route

• Published in: Journal of the Indian Chemical Society 2023-07, Vol.100 (7), p.101036, Article 101036
• Main Authors: Renuga Devi, L., Meenakshi Sundar, S.
• Format: Article
• Language: English
• Subjects: Mn doped ZnO; Optical property and magnetic property; Solvothermal method; Structural property
• ISSN: 0019-4522
• DOI: 10.1016/j.jics.2023.101036

Mn doped ZnO (Zn: Mn) nanopowder is successfully synthesized using the solvothermal route with concentration (X = 2%–8%) and annealing at 450 °C. The resulting material is investigated using various techniques. XRD studies confirm the structure of hexagonal wurtzite and good crystallinity in nature. From FESEM analysis confirms the formation of nanoparticles and allows for evaluation of the particle size of the sample. UV–Vis studies are used to determine absorbance wavelength and energy bandgap values. PL and EPR spectra confirm of the existence of zinc vacancy defects and g values are calculated. Interestingly, magnetic measurements revealed that the low concentration exhibited superparamagnetic behavior, while the high concentration showed a soft ferromagnetic structure using VSM. [Display omitted] •Synthesis of Mn doped ZnO nanoparticles with concentration 2, 4, 6, and 8 by using microwave solvothermal method.•The XRD results shows that the hexagonal wurtzite structure of ZnO.•Optical and magnetic properties of Mn doped ZnO nanoparticles are correlated well.•VSM result showed that the superparamagnetic and ferromagnetic in structure.