Representative TEM images of (a) undoped ZnO nanoparticles of , (b) commercial ZnO of size 100–500 nm (used as reference), (c) , and (d) nanostructures.
XRD data of selected samples as indicated on the graph. All the samples show wurtzite ZnO peaks as indexed for bulk ZnO. Distinct peaks for and CdO appears (as indexed on the respective curve) in case of phase segregated and nanostructures.
Nonresonant Raman spectra of (a) Bulk ZnO powder and (b) series of and alloy nanostructures. Assigned Raman modes are indicated on the graph. A sharp peak at is originated from the glass substrate (c). The LO mode of nanostructures is fitted by two Gaussian to resolve (LO) and (LO) modes of ZnO. Observed shift in the (LO) mode with Mg and Cd concentration is plotted in (d).
The FTIR spectra of , , and phase segregated MgZnO alloy as indicated on the graph.
Variation in the IR modes of and alloy nanoparticles as indicated on the graph.
Size, morphology, and chemical compositions of the nanostructures investigated.
Assignments of characteristic Raman modes for bulk ZnO powder.
Raman modes of ZnO and its alloy nanostructures.
IR active vibration modes for ZnO and its alloy nanostructures.
The IR band and local structure data of Zn bonds of (, for Mg, and for Cd) samples.
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