Perovskite inspired materials for optoelectronics and photovoltaics

This research begins with an investigation into the radiative recombination processes and optoelectronic efficiency of 3D perovskites, focusing on methylammonium lead iodide (MAPI). The study provides key insights into photon emission dynamics, forming a foundation for exploring stability and efficiency enhancements in next-generation perovskite materials. From this starting point, the research expands into two branches, focusing on 2D and lead-free double perovskites. The first branch explores 2D perovskites, emphasizing their stability, quantum confinement effects, and optoelectronic performance. These materials exhibit unique carrier dynamics, influenced by exciton behaviour and structural disorder. The second branch investigates double perovskites as sustainable alternatives, highlighting their efficient light emission, structural stability, and environmental compatibility. Compositional adjustments, particularly the incorporation of non-toxic elements, enable optimized emission properties and robust performance. A central aspect of this work and my specific contribution to this research is the synthesis and primary characterization of these materials. Synthesis methods include spin-coating, sublimation, and solution-based techniques, while characterization comprises X-ray diffraction (XRD), photoluminescence (PL), photoluminescence excitation (PLE), absorption spectroscopy, Raman spectroscopy, and photoluminescence quantum yield (PLQY) measurements. Together, these approaches establish a comprehensive understanding of the structural and optical properties of perovskites. This research demonstrates the evolution from established 3D perovskites to innovative 2D and double perovskites, providing a pathway to develop high-performance, sustainable materials for photovoltaic and optoelectronic applications.