Halide perovskites for optoelectronic application

Abstract

In recent decades, lead-based perovskites have emerged as strong candidates for widespread applications in the field of optoelectronics and solar cells. All inorganic metal halide perovskites have attracted significant attention from researchers owing to their intriguing optoelectronic features and thereby, their usage perspective in photovoltaic applications, light-emitting diodes, and lasing devices. Here, we have adopted a simple, ambient-conditioned chemical synthesis approach to realize high-quality triple cation containing lead iodide perovskite nanorods. The crystallinity and morphological characterizations were performed by X-ray diffraction and field emission scanning electron microscope measurements, respectively, while the chemical composition was examined via energy-dispersive X-ray spectroscopic measurement. The synthesized nanorods have an average length of 2-3 ?m and a diameter of 250-350 nm. These nanorods are much more stable than their respective single cation halide perovskite and thus offer a significant improvement in addressing the stability issue pertaining to the usage of perovskite materials as photovoltaic devices.