摘要
Metal halide perovskite nanocrystals(NCs)exhibit impressive optical and electronic properties,making them an important class of functional materials with promising applications in solar cells,light emitting diodes(LEDs),photodetectors,and photocatalysts.In addition to the widely studied 0-dimensional(0 D)metal halide perovskite NCs,such as nanocubes,low dimensional perovskites,such as 2 D all-inorganic perovskite(AIP)NCs,subsist with directionally relevant quantum confinement.These anisotropic NCs have the propensity to exhibit interesting optoelectronic properties that are exceedingly difficult to introduce into 0 D systems,yet as of late are largely unexplored.In this review,we discuss the recent synthetic progress of 2 D all-inorganic metal halide perovskite NCs with ABX3 structure.Specifically,we highlight the discrete composition control of the cations(A and B sites)and anions(X site)by dopant incorporation and alloying in 2 D metal halide perovskite NCs.We will also discuss more complex perovskite crystal structures,such as Ruddlesden-Popper double perovskites,and compare these materials to 0 D perovskite systems.Ultimately,our work culminates in the future interests and perspectives of this field with a focus on the wide applicability of 2 D systems and the large variance in structure capable with discrete compositional tuning.
基金
support from Syracuse University under the Collaboration for Unprecedented Success and Excellence(CUSE)Grant(SD-10-2020)
ACS Petroleum Research Fund under Award Number 59861-DNI5
NSF CAREER under Award Number CHE-1944978。
