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TEM images of the ZnO NP samples (Z1, Z2, and Z4).
UV PL spectra of sample Z1 from .
Observed and calculated energies of FX and FX-1SO bands.
Raman spectra of sample Z1 at room temperature and at low temperatures (solid line). The dash line is the Lorentzian fitting.
UV PL (a) and Raman (Ref. 2) (b) spectra of ZnO NP samples (Z1, Z2, and Z4) at room temperature.
PL energy of FX emission peak obtained from experiments and theoretical calculations, for ZnO NP samples Z1, Z2, and Z4.
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