Recent progress in layered metal halide perovskites for solar cells, photodetectors, and field-effect transistors

Abstract

Metal halide perovskite materials demonstrate immense potentials for photovoltaic and electronic applications. Two-dimensional (2D) layered metal halide perovskites are more promising for such optoelectronic applications than their 3D counterparts due...

Synthetic approaches for perovskite thin films and single-crystals

“…Other structures of the 2D perovskites are the Dion–Jacobson (DJ) phase and the phase with alternating cations in the interlayer space (ACI), corresponding to the differences in crystallography and stacking motif, respectively. 75 They are hence quite similar to conventional 2D materials having a van der Waals layered crystal structure. The (A n −1 M n X 3 n +1 ) 2− part of their formula denotes the conductor layer that derives from the parent 3D (AMX 3 ) perovskite.…”

Piperidine and Pyridine Series Lead-Free Dion–Jacobson Phase Tin Perovskite Single Crystals and Their Applications for Field-Effect Transistors

“…Layered Sn-based halide perovskites demonstrated great potential for field-effect transistor (FET) applications due to their high charge carrier mobility, structural confinement effect, and diverse selection of organic spacers. 8 In terms of the popular phases for layered Sn-based perovskites, there are numerous reports on Ruddlesden−Popper (RP) perovskites [11][12][13][14]16,20,22 and Dion−Jacobson (DJ) perovskites 15−18,25−28 and electronic device demonstrations. Typically, the DJ phase structure with a diammonium spacer has a shorter spacing between [SnI 6 ] 4− octahedron layers and a weaker exciton coupling effect than the RP phase structure with a monoammonium spacer which in principle reduces the exciton binding energy and increases the out-of-plane conductivity for better charge transport and charge collection by the electrodes in either planar or vertical device architectures.…”

Novel Two‐Dimensional NbWO6 Nanosheets for High Performance UV Photodetectors

“…[1][2][3][4] More intriguingly, their unique tunability of bandgap, excellent chargetransport characteristics and high light absorption, make them a promising material for the use of ultraviolet photodetectors (UV PDs), which can be used in spectral analysis, environmental monitoring, image sensing, and so on. [5][6][7][8][9][10] Additionally, their reduced dimension, combined with excellent transparency and flexibility, make them as promising candidates for use of the nextgeneration high-performance PDs with wearable, miniaturization, and flexibility features. [11][12][13][14] Over the past decades, substantial progress have been made to develop high-performance UV PDs based on 2D perovskite DOI: 10.1002/aelm.202300462 materials, including organic-inorganic hybrid perovskite and all-inorganic perovskites.…”

“…[ 1–4 ] More intriguingly, their unique tunability of bandgap, excellent charge‐transport characteristics and high light absorption, make them a promising material for the use of ultraviolet photodetectors (UV PDs), which can be used in spectral analysis, environmental monitoring, image sensing, and so on. [ 5–10 ] Additionally, their reduced dimension, combined with excellent transparency and flexibility, make them as promising candidates for use of the next‐generation high‐performance PDs with wearable, miniaturization, and flexibility features. [ 11–14 ]…”