278364.fig.002a
(a)
278364.fig.002b
(b)
Figure 2: (a) X-ray diffraction patterns of ZnSe wafer and ZnSe nanoparticles fabricated at various laser fluences. W: Wurtzite. ZB: Zinc blende. (b) Raman spectra of ZnSe wafer and ZnSe nanoparticles fabricated at various fluences. The 633.0 nm laser was used as the excitation light. Inset: the Raman spectra of ZnSe nanoparticles fabricated at fluence of 220 mJ/cm2 on a large scale with Lorentz peak fitting. TO: transverse optical phonon mode. LO: longitudinal optical phonon mode. 𝑆 : surface phonon mode.