A sandwich-like structural model revealed for quasi-2D perovskite films
Fei Zheng, Christopher R. Hall, Dechan Angmo, Chuantian Zuo, Sergey Rubanov, Zhenchuan Wen, Siobhan J. Bradley, Xiaotao Hao, Mei Gao, Trevor A. Smith, Kenneth P. Ghiggino
Abstract
Quasi-2D perovskite films deposited on hot substrates are shown to possess a sandwich-like, large-<italic>n</italic>/small-<italic>n</italic>/large-<italic>n</italic> phase distribution profile in the orthogonal direction. This structure facilitates both exciton funneling to the film surfaces and efficient charge carrier transport.
Topics & Concepts
Perovskite (structure)Materials sciencePhase (matter)ExcitonCrystallographyCondensed matter physicsPhysicsChemistryQuantum mechanicsPerovskite Materials and Applications2D Materials and ApplicationsQuantum Dots Synthesis And Properties