Figure 3
The TRPL spectra for group I samples at different time delays (from 10−8 to 10−3 s) at T = 18 K. (a) Sample H2057, (b) sample H201. The lines are calculated using Eq. (2) with the following parameters: S e = 8.5, E0* = 2.93 eV, \(\hslash {\omega }_{{\rm{\max }}}=2.40\) eV (for the GL1 band), S e = 7.4, E0* = 2.66 eV, \(\hslash {\omega }_{{\rm{\max }}}=2.20\) eV (for the YL1 band), and S e = 6.2, E0* = 2.22 eV, and \(\hslash {\omega }_{{\rm{\max }}}=1.78\) eV (for the RL1 band).
