Nonlinear photocarrier dynamics and the role of shallow traps in mixed-halide mixed-cation hybrid perovskites
David A. Valverde-Chávez, Esteban Rojas‐Gatjens, Jacob Williamson, Sarthak Jariwala, Yangwei Shi, Declan P. McCarthy, Stephen Barlow, Seth R. Marder, David S. Ginger, Carlos Silva
Abstract
We examine the role of surface passivation on carrier trapping and nonlinear recombination dynamics in hybrid metal-halide perovskites by means of excitation correlation photoluminescence (ECPL) spectroscopy.
Topics & Concepts
Materials scienceHalidePassivationPhotoluminescenceTrappingRecombinationExcitationNonlinear systemChemical physicsMetalSpectroscopyOptoelectronicsInorganic chemistryNanotechnologyChemistryMetallurgyPhysicsLayer (electronics)EcologyBiochemistryBiologyQuantum mechanicsGenePerovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyChalcogenide Semiconductor Thin Films