Characterization of ZnO nanoparticles by resonant Raman scattering and cathodoluminescence spectroscopies

摘要

We have measured the Raman and cathodoluminescence (CL) spectra of ZnO nanoparticles with different crystallite sizes. The Raman spectra show that the frequency of the E_2 (high) phonon in these nanoparticles, which is initially high, decreases with the c