ABSTRACT A promising development in photovoltaics (PVs), mixed 2D/3D perovskite solar
cells (PSCs) have the potential to overcome the drawbacks of conventional 3D PSCs. This …

Three-dimensional (3D) organic–inorganic lead halide perovskites have emerged in the
past few years as a promising material for low-cost, high-efficiency optoelectronic devices …

The energy landscape of reduced-dimensional perovskites (RDPs) can be tailored by
adjusting their layer width (n). Recently, two/three-dimensional (2D/3D) heterostructures …

Abstract 3D perovskite solar cells (PSCs) have shown great promise for use in next‐
generation photovoltaic devices. However, some challenges need to be addressed before …

Quasi-two-dimensional (quasi-2D) perovskites have attracted attention because they have
better stability than the 3D counterpart. However, power conversion efficiency of perovskite …

In metal halide perovskite solar cells the formation of a 2D/3D bulk heterostructure has a
positive effect on device stability but can be detrimental to charge transport and power …

Abstract Lead‐halide perovskites (LHPs), in the form of both colloidal nanocrystals (NCs)
and thin films, have emerged over the past decade as leading candidates for next …

Because interfacial nonradiative recombination (NRR) has a significant influence on device
performance, the minimization of interfacial NRR losses through interface engineering …

In recent years, the perovskite solar cells have gained much attention because of their ever-
increasing power conversion efficiency (PCE), simple solution fabrication process, flyable …

Two-dimensional (2D) perovskites have attracted considerable interest for their promising
applications for solar cells and other optoelectronics, such as light-emitting diodes …