Emission Mechanisms of Si Nanocrystals and Defects in SiO₂ Materials

Figure 7

(Figure 1 from [44]). Optical absorption spectrum, PL spectrum under cw 325 nm laser excitation, and the first 200 ns averaged PL spectra under 5 ns, 335 nm pulsed laser excitation of (a) ~100 µJ/ (solid line) and (b) ~0.6 µJ/ (broken line) at room temperature.