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

Abstract

Raman scattering of pure ZnO and ZnO/NiO nanocomposite have been investigated. Raman line shapes of the E(high)2 mode have been analyzed using the spatial correlation model.

Hydroxyl radical assisted enzyme-free electrochemical detection and oxidation of cholesterol by a galvanically deposited layer-by-layer ZnO/WO3 thin film nanocomposite

“…30 Therefore, the total number of phonons should be 3 n = 12 ( n = 4) with 9 optical modes (3 n − 3 = 9) and 3 acoustic modes. The irreducible representation of optically active Raman spectra is given by 31 Γ (Infrared + Raman) = 1E 1 + 2E 2 + 1A 1 + 2B 1 , where E modes are doubly degenerate. In this case, the B modes are silent, i.e.…”

Synergetic Contributions from the Components of Flexible 3D Structured C/Ag/ZnO/CC Anode Materials for Lithium‐Ion Batteries

“…The zone‐center optical phonons can be classified into polar and Raman modes as Γ opt = A 1 + 2B 1 + E 1 + 2E 2 , where A 1 and E 1 are both Raman and IR active polar modes, the E 2 modes (E 2 low and E 2 high ) are nonpolar and Raman active only, B 1 modes are silent. [ 39 ] The E 2 modes can be used as the fingerprint Raman signal for ZnO. Figure 3d shows the changes in the peak at 437 cm −1 which corresponding to the E 2 high mode of ZnO.…”

Design and photovoltaic studies of W@TiO2/rGO nanocomposites with polymer gel electrolyte

“…Such higher values of d and strain for WTR NCs compared to bare TiO 2 NPs as well as binary TR NCs confirm the defects, stability, and energetic surface of NCs. 40…”

“…Such higher values of d and strain for WTR NCs compared to bare TiO 2 NPs as well as binary TR NCs confirm the defects, stability, and energetic surface of NCs. 40 Fourier transform infrared (FT-IR) analysis FT-IR spectra of synthesized bare TiO 2 NPs, TR NCs, and WTR-2 NCs are shown in Fig. 4 and have a range of 500-4000 cm À1 at room temperature.…”