**3.4 Si2p emission**

As explained above, the Si NWs show native oxide on the surface. The emission of the native oxide (without charging effect) appears in the 101–104 eV. By removing the native oxide and obtaining Si▬H bonds, we can start the chlorination/ alkylation process. Removing the native oxide is confirmed by the absence of the emission in 101–104 eV as seen **Figure 11** [46].
