How Stable Is the 2D/3D Interface of Metal Halide Perovskite under Light and Heat?
Jishnudas Chakkamalayath, Nathaniel Hiott, Prashant V. Kamat
Abstract
A (PEA)2PbI4 (2D) layer deposited on a MAPbI3 (3D) film undergoes a transformation upon photoirradiation and thermal treatment. The decrease in absorption and emission of the 2D layer during light and heat exposure, which shows migration of the PEA+ cation within the 3D film, points out the dynamic nature of the 2D/3D interface and intermixing of the two phases.
Topics & Concepts
HalidePerovskite (structure)Layer (electronics)Absorption (acoustics)Materials scienceMetalThermalInterface (matter)Chemical physicsCrystallographyOptoelectronicsChemical engineeringChemistryInorganic chemistryNanotechnologyComposite materialMetallurgyThermodynamicsPhysicsEngineeringCapillary actionCapillary numberPerovskite Materials and Applications2D Materials and ApplicationsQuantum Dots Synthesis And Properties