Experimental synthesis of double perovskite functional nano-ceramic Eu2NiMnO6: Combining optical characterization and DFT calculations

We reported on the synthesis of the pure double perovskite Eu2NiMnO6 in nano ceramic forms by two different methods solvotermal and sol-gel routes without europium and magnesium nitrate. Room temperature X-ray powder diffraction study of the compound revealed a monoclinic P21/n structure. The particle size was determined by the Williamson-Hall and Scherrer formula and found around 43 and 59 nm for the average size. The chemical, homogeneous and optical properties of nanoparticles were confirmed by SEM, UV-vis absorbance and FTIR spectra. The Eu2NiMnO6 has an energy band gap 1.32 eV determined by Heyd-Scuseria Ernzerhof (HSE06) from density-functional theory (DFT) calculations close to the value found experimentally 1.01 eV.

Automated summary

This study reports the synthesis of pure double perovskite Eu2NiMnO6 in nano ceramic forms using solvothermal and sol-gel routes without europium and magnesium nitrate. X-ray powder diffraction reveals a monoclinic P21/n structure and the particle size is determined to be around 43 and 59 nm. The chemical, homogeneous, and optical properties of nanoparticles are confirmed by SEM, UV-vis absorbance, and FTIR spectra. The calculated energy band gap of Eu2NiMnO6 using density-functional theory is close to the experimental value.