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Advances and promises of layered halide hybrid perovskite semiconductors

AutorPedesseau, Laurent; Sapori Daniel; Traore, Boubacar; Robles, Roberto ; Fang, Hong-Hua; Loi, Maria Antonietta; Tsai, Hsinhan; Nie, Wanyi; Blancon, Jean-Christophe; Neukirch, Amanda; Tretiak, Sergei; Mohite, Ashwini A.; Katan, Claudine; Even, Jacky; Kepenekian, Mikaël
Palabras clavek·p
Bethe−Salpeter equation
Density functional theory
Rashba
Exciton
Halide perovskites
Layered materials
Quantum confinement
Dielectric confinement
Fecha de publicación2016
EditorAmerican Chemical Society
CitaciónACS Nano 10(11): 9776-9786 (2016)
ResumenLayered halide hybrid organic-inorganic perovskites (HOP) have been the subject of intense investigation before the rise of three-dimensional (3D) HOP and their impressive performance in solar cells. Recently, layered HOP have also been proposed as attractive alternatives for photostable solar cells and revisited for light-emitting devices. In this review, we combine classical solid-state physics concepts with simulation tools based on density functional theory to overview the main features of the optoelectronic properties of layered HOP. A detailed comparison between layered and 3D HOP is performed to highlight differences and similarities. In the same way as the cubic phase was established for 3D HOP, here we introduce the tetragonal phase with D symmetry as the reference phase for 2D monolayered HOP. It allows for detailed analysis of the spin-orbit coupling effects and structural transitions with corresponding electronic band folding. We further investigate the effects of octahedral tilting on the band gap, loss of inversion symmetry and possible Rashba effect, quantum confinement, and dielectric confinement related to the organic barrier, up to excitonic properties. Altogether, this paper aims to provide an interpretive and predictive framework for 3D and 2D layered HOP optoelectronic properties.
URIhttp://hdl.handle.net/10261/159297
Identificadoresdoi: 10.1021/acsnano.6b05944
e-issn: 1936-086X
issn: 1936-0851
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