Tuning Hot Carrier Cooling Dynamics by Dielectric Confinement in Two-Dimensional Hybrid Perovskite Crystals

• Published in: ACS nano Vol. 13; no. 11; pp. 12621 - 12629
• Main Authors: Yin, Jun, Maity, Partha, Naphade, Rounak, Cheng, Bin, He, Jr-Hau, Bakr, Osman M, Brédas, Jean-Luc, Mohammed, Omar F
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 26.11.2019
• Subjects: electron−phonon coupling; hot carrier cooling; dielectric confinement; 2D hybrid perovskites; nonadiabatic molecular dynamics

Hot carrier (HC) cooling is a critical photophysical process that significantly influences the optoelectronic performance of hybrid perovskite-based devices. The hot carrier extraction at the device interface is very challenging because of its ultrashort lifetime. Here, ultrafast transient reflectan...