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(a) Top-view and (b) side-view SEM images of Nd-doped SiNWs.
(a) TEM image of the as-synthesized Nd-doped SiNW. The inset shows the EDS spectrum with electron beam focused on the NW. (b) SAED pattern of the NW along  zone axis. (c) HRTEM image of the NW.
PL spectra of the Nd-doped SiNWs measured at 10 and 298 K. The PL was excited by 488 nm Ar laser at a power of 40 mW. The inset displayed XPS spectra of Nd-doped SiNW.
Hysteresis loops at 10 and 300 K. The inset shows the temperature-dependent magnetization curve.
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