Synthesis and Raman scattering study of rutile SnO2 nanowires

This article reports the synthesis and Raman scattering study of rutile ${\mathrm{SnO}}_2$ nanowires obtained by a simple precursor thermal decomposition process in NaCl flux with ${\mathrm{Sn(CO}}_3{)}_2$ as the precursor. The ${\mathrm{SnO}}_2$ nanowires have lengths up to tens of micrometers and diameters in the range of 8–25 nm, with an average of 15 nm. In addition to the fundamental Raman scattering peaks, the other two Raman scattering peaks are also observed. We have discussed the possible reasons for the appearance of two Raman scattering peaks at 300 and $\text{601\hspace{0.17em}}{\mathrm{cm}}^{\text{−1}},$ but the origin of these two modes is not well understood.