Enhancement in the stability of perovskite solar cells with Cs-based optimized hybrid nanocomposites

Perovskite solar cells have higher efficiency and low cost as compared to other available commercial solar cells however due to large advantages it is not available commercially because it has very low stability which is nearly equal to one year. So to enhance the stability, different types of Cs-based optimized hybrid nanocomposites are used. Sol–gel and hydrothermal methods were used to prepare the Cs-nanocomposites. The crystallinity, surface morphology, elemental composition, thermal stability and nanocomposites’ absorbance were observed using X-ray diffraction, scanning electron microscope, energy dispersive X-ray, thermo gravimetric analysis, ultraviolet-visible (UV–Vis) and Raman spectroscopy techniques. This research work consents successfully for the synthesis of nanocomposites and enhancement in stability of perovskite substantial-based absorber layer. During analysis of TGA, only 2.5% of the weight of Cs-nanocomposites lost their total weight and J-V properties such as [Formula: see text] and power conversion efficiency of PSCs remarkably increased by nearly 3[Formula: see text]mAcm[Formula: see text] and 4%, respectively by using Cs-based NCs.