Resolution:
## Figure 3.
PL lifetime and integrated PL. (a) Arrhenius plot of the PL lifetime (on a semi-logarithmic scale) as a function of
1/T, at a photon energy of 2.03 eV (610 nm) for H-PSi (red circles) and O-PSi (black
squares). The solid lines represent the best fit to the singlet-triplet model of Eq.2.
(b) Arrhenius plot of the integrated PL. Inset shows the schematics of the excitonic
two-level model with the upper excitonic singlet-triplet state and the ground (no
exciton) state. The arrows represent the allowed (from the singlet) and the forbidden
(from the triplet) optical transitions.
Arad-Vosk and Sa'ar |