Research progress, challenges and opportunities in all-inorganic perovskite photovoltaics

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Chinese explanation / 中文解读

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Original abstract

The presence of organic components renders organic-inorganic hybrid perovskites highly susceptible to degradation under continuous light irradiation and high-temperature conditions, severely restricting their large-scale practical application in photovoltaic fields. By contrast, all-inorganic perovskites have emerged as highly promising candidate materials for next-generation photovoltaic technologies thanks to their excellent photothermal stability and favorable optoelectronic properties. This review comprehensively summarizes the intrinsic structural characteristics and optoelectronic properties of inorganic perovskites, and details prevalent inorganic perovskite film fabrication routes, including spin-coating, vacuum evaporation deposition, and other methods, alongside their respective advantages and application scenarios. On this basis, it focuses on the latest research progress in performance optimization strategies for inorganic perovskite films through compositional optimization, annealing processing, anti-solvent engineering, post-treatment optimization, and additive modification. Additionally, recent advances and milestones in inorganic perovskites for large-area modules, tandem devices, and flexible perovskite solar cells are reviewed. Finally, it systematically discusses the key bottlenecks hindering the commercialization of inorganic perovskite solar cells and prospects their future development directions and application opportunities.

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