(Invited) Charge Carrier Dynamics of Inorganic Perovskite Quantum Dots Showing Water Treatment Effect of Photoluminescence Efficiency

摘要

All-inorganic perovskite CsPbX_3 (X = Cl, Br, I) quantum dots (QDs) exhibit a high photoluminescence quantum yield, and is attracting attention due to the increasing demand for optoelectronic devices such as solar cells and light-emitting diodes (LEDs). In this study, we prepared a solution of CsPbBr_3 QD synthesized by hot injection method and performed femtosecond transient absorption spectroscopy. In particular, we investigated the change in transient absorption during the process of improving luminous efficiency by water treatment.