Figure 5
Relative CM efficiency (number of e–h pairs created per photon absorbed) as a function of the pump photon energy, based on the ratio of the fast and slow components of the TA transients. The bottom panel shows the PL spectrum and scaled multiples of it. The blue line is the energy conservation limit, which is the integral of the nPL curves (the dashed line is the integral scaled by a factor of 0.9 to coincide with the data points). CM, carrier multiplication; e–h, electron–hole; PL, photoluminescence; TA, transient absorption.
