Research Article

Influence of Carbon Modification on the Morphological, Structural, and Optical Properties of Zinc Oxide Nanoparticles Synthesized by Pneumatic Spray Pyrolysis Technique

Table 3

Theoretical Raman vibrational frequencies and symmetry for bulk ZnO NPs obtained from a number of literature sources [12, 15, 37].

Frequency (cmāˆ’1)1023303794375415775926601153
SymmetryMultiphonon(TO)MultiphononMultiphonon