Work

Stability of Tin–Lead Mixed Perovskite Solar Cells: Challenges, Strategies, and Future Prospects

Year: 2025

Type: article

Abstract: Tin–lead (Sn–Pb) mixed perovskite solar cells (PSCs) have gained significant attention as top cells for tandem photovoltaic technologies owing to their compositionally tunable bandgaps (1.2–1.4 eV) and superior near‐infrared light absorption. Despite these advantages, their practical deployment is hindered by uncontrolled crystallization dynamics and severe defect formation, which accelerate degradation under ambient conditions. This review provides a comprehensive analysis of the fundamental optoelectronic properties and recent advancements in Sn–Pb hybrid perovskites, with a focus on strategies aimed at enhancing their stability. Key approaches discussed include the design of 2D/3D heterostructures, incorporation of redox‐active additives, solvent engineering, and interfacial modification of charge transport materials. Finally, we highlight the remaining challenges and outline prospective research directions to advance the long‐term stability and commercial viability of Sn–Pb mixed PSCs.

Source: Solar RRL

DOI: 10.1002/solr.202500782

Authors: Wenjuan Feng, Yuping Gao, Rui Wang, Yongsheng Liu

Institution: Nankai University

Language: English

Topic: Perovskite Materials and Applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: bronze

Funder: National Natural Science Foundation of China