Fig. 3: Detection of charge dynamics.
From: Isolated Ni atoms enable alkali-free photoreforming of waste polylactic acid plastic

Transient absorption contour plot of a CdS and b Ni/CdS. The fs-TA spectra of c CdS and d Ni/CdS at different time delays. Transient absorption decay kinetics of e CdS and f Ni/CdS.