Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
Publication date: 16th December 2024
Perovskite solar cells (PSC) are an exciting, emerging technology showing promising advances for applications within the circular economy and potential to help deliver net zero targets.[1] Currently, PSCs have demonstrated a power conversion efficiency of 26.7 % [2] aided by a high absorption coefficient and ideal band gap.[3] However, PSC performance can be impacted by degradation of the toxic Pb-containing perovskite layer where moisture, oxygen and light have shown to create challenges in device fabrication and stabilisation for commercial use.[4] Moreover, lead halide perovskites are able to decompose into water-soluble lead salts, Pb2+, which can leach to the environment if damaged through use or during end-of-life processing.[5,6] Over a period of time, this presents a risk of harmful exposure to our ecosystems and ultimately impact human health.[7] This work addresses the issues of lead leakage following perovskite degradation through the capture of Pb2+ ions to prevent environmental emissions, advancing the eco-design of PSCs.