Figure 4
From: Observation of strongly enhanced photoluminescence from inverted cone-shaped silicon nanostructures
Power dependence of PL emission.
(a) Spectral distribution of the normalized PL intensity of SiNC C4 as function of pump power (660 nm cw laser). The white dashed line indicates the position of the PL spectrum shown in Fig. 1(a). (b) Black dots show the normalized integrated PL intensity as a function of pump power for an individual peak in the spectrum (λ = 1027 nm) while red dots show the Q-factor which is determined by a fit of the associated peak (compare supplementary information S2).
