Gengling Liu, Guo Yang, Wenhuai Feng, Wu‐Qiang Wu
dynamic interfacial confinement and integrated physical-chemical encapsulation further minimizes Pb leakage. In addition, the use of biocompatible supramolecular cyclodextrins for selective Pb ion chelation represents a promising route to reduce Pb toxicity at the material and environmental levels. Despite these achievements, challenges persist in ensuring scalability, long-term stability, and economic feasibility. Looking forward, future efforts should focus on intelligent Pb-sequestrating materials, Pb-free perovskite alternatives, closed-loop recycling systems, and interdisciplinary collaboration. By integrating chemical innovation with sustainability principles, a transformative pathway can be envisioned toward a safe, stable, and environmentally responsible perovskite optoelectronics industry.