Fig. 5
From: Observation of a phonon bottleneck in copper-doped colloidal quantum dots
Comparison to lead halide perovskites. a Exciton bleach formation kinetics of CdSe (purple line) and Cu:CdSe QDs (wine line) in this study (400 nm pump) and FAPbBr3 (red squares), MAPbBr3 (green circles), and CsPbBr3 (blue triangles) NCs adapted from ref. 8 (350 nm pump). All the kinetics were measured under sub-single-exciton conditions. b Hot carrier energy loss rates calculated for FAPbI3, MAPbI3, FAPbBr3, MAPbBr3, and CsPbBr3 bulk films, FAPbBr3, MAPbBr3, and CsPbBr3 NCs, and CdSe (purple) and Cu:CdSe QDs (wine). The data for perovskite bulk films and NCs are adapted from refs. 7,8 respectively
