Figure 5From: Visible and infrared emission from Si/Ge nanowires synthesized by metal-assisted wet etchingPL spectra of Si/Ge NWs. (a) Room temperature spectrum in the visible region. (b) Spectrum in the IR region obtained at 11 K. Both spectra were obtained with a photon flux of 3.1 × 1020 cm−2 · s−1.Back to article page