Members: Adi Raz

Supervisor: Yossi Paltiel, Lioz Etgar

Existing solar PV industry predominantly relies on silicon-based solar cells. These cells are limited in efficiency, and their fabrication is polluting. Perovskite is a possible material poised to replace silicon. Perovskite solar cells are simple to fabricate and are constantly improving; however, stability and efficiency should be improved before commercialization. Our research explores the Chiral-Induced Spin Selectivity (CISS) effect within chiral perovskite solar cells, specifically investigating the advantage of chirality in charge separation and overall device efficiency. The integration of R/S_MBA chiral barrier molecules into the perovskite structure has already been accomplished. This research attempts manipulations under varied magnetic conditions, representing a pioneering approach to modulate electron behavior through controlled spin polarization. The primary goal is to examine the impact of magnetic substrates and electron spin on the organization of chiral perovskite-based solar devices and relate the effect to charge separation capabilities. We employ R/S_MBA chiral molecules to investigate how these modifications affect the device's efficiency, both with and without the influence of external magnetic fields In our experimental design, we start with synthesizing chiral perovskite structures on glass subtracts, measuring absorption, emission, and Circular Dichroism (CD). We then explore chiral perovskites on magnetic substrates like gold-coated nickel under external magnetic fields, analyzing structural and magnetic properties to assess charge dynamics and material orientation. Our third group investigates the effects of ferromagnetic dopants within the chiral perovskite matrix under varying magnetic conditions, focusing on the electronic properties. These experiments are geared towards using our findings to fabricate high-efficiency chiral-based solar cells, leveraging the unique properties of chiral perovskites and magnetic interactions.