Utilization of 0D Perovskite to the 3D Organometal Halide Perovskite: Improved Morphological, Optical, and Structural Properties

Abstract

Albeit low efficiency of lower-dimensional perovskites are still game-changer;
when they are used with 3D perovskites. Numerous factors are responsible for
efficient photovoltaic devices based on organometal halide perovskites. Among
them, better film morphology and extended environmental stability are critical
parameters, governing the photovoltaic performance of a device. The present
researche has utilized lower-dimensional perovskites, i.e., DA0.1Cs2.9Bi2I9 (0D)
into triple-cations organometal halide perovskite, i.e., CsFAMAPbI3 (3D) to
fabricated compact films in the ambient environment without pre-heating the
substrate. It is revealed by various characterization results that the prepared
0D/3D perovskites films exhibited better film morphology, improved
crystallinity, and optoelectronic properties. The 0D perovskites shield the 3D
perovskites from moisture ingress consequently, the final product remains
environmentally stable. This study can provide a pathway toward the ambient
fabrication of high-quality perovskite thin films for highly efficient
optoelectronic devices.