Figure 1.

(a) Side-view SEM image of as-grown asymmetric WZ GaP nanowire and top-view SEM image of GaP structure grown for 6 hours and transferred to Si substrate. (b) and (c) Room temperature Raman spectra performed in the $Z\left(XX\right)\overline{Z}$and $Z\left(XY\right)\overline{Z}$configurations, respectively, showing the $E_2^L$ mode characteristic of the hexagonal phase. Insets show the spectra around the optical phonons. The deconvoluted modes are shown in dashed lines.