Influence of SOP modes on Raman spectra of ZnO(Fe) nanoparticles

• ZnO doped with Fe2O3, samples were prepared by calcination method.
• Coexistence of phases Fe2O3 and ZnFe2O4 with ZnO have been registered by Raman spectroscopy.
• Existence of ZnO nanoparticles surface optical phonon is evident.

Nanocrystaline samples of ZnO(Fe) were synthesized by traditional wet chemical method followed by calcinations. Samples were characterized by X-ray diffraction to determine composition of the samples (ZnO, ZnFe2O4 and Fe2O3) and the mean crystalline size (from 8 to 51 nm). In this paper we report the experimental spectra of Raman scattering (from 200 to 1600 cm−1) with surface optical phonons (SOP) in range of 500–550 cm−1. The phonon of registered phase’s exhibit effects connected to phase concentration, while the SOP phonon mode exhibit significant confinement effect.

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