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Raman spectroscopic study of ZnO/NiO nanocomposites based on spatial correlation model.

ABSTRACT: The effect of nickel concentration has been investigated in ZnO/NiO nanocomposites synthesized using the co-precipitation method. The X-ray diffraction and TEM measurements confirm the distinct phase of NiO in the ZnO/NiO samples. Furthermore, the Raman study shows the sharp modes at 99 cm^-1 and 438 cm^-1 corresponding to E^(low) ₂, E^(high) ₂ of hexagonal wurtzite ZnO structure and, 1080 cm^-1 associated to the two-phonon (2P) mode of NiO, respectively. We also compared the effect of Ni concentration on the formation of ZnO/NiO by analyzing E^high ₂ Raman mode of ZnO with the help of spatial correlation model. The correlation lengths, broadening and asymmetry ratio obtained from the fitting showed good agreement with the experimental results.

SUBMITTER: Dev G S

PROVIDER: S-EPMC9070446 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Raman spectroscopic study of ZnO/NiO nanocomposites based on spatial correlation model.

Dev G Sarang S Sharma Vikas V Singh Ashish A Baghel Vidushi Singh VS Yanagida Masatoshi M Nagataki Atsuko A Tripathi Neeti N

RSC advances 20190828 46

The effect of nickel concentration has been investigated in ZnO/NiO nanocomposites synthesized using the co-precipitation method. The X-ray diffraction and TEM measurements confirm the distinct phase of NiO in the ZnO/NiO samples. Furthermore, the Raman study shows the sharp modes at 99 cm-1 and 438 cm-1 corresponding to E(low) 2, E(high) 2 of hexagonal wurtzite ZnO structure and, 1080 cm-1 associated to the two-phonon ...[more]

PMID: 35528586

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