“…4 Consequently, there exists a continually increasing fascination with innovative lead-free halide perovskite congurations, encompassing both bulk lms and nanocrystals (NCs). 5,6 Nonetheless, nearly all the investigated substitutes for lead are reliant on materials with disputed levels of toxicity, modest stability, and/or restricted accessibility, thereby presenting challenges in terms of disposal and recycling. 7 Titanium (Ti) emerges as an environmentally friendly and readily available element, holding promise as an optimal component in sustainable perovskite formulations.…”