Inorganic Perovskite Solar Cells and Photovoltaic Performance

All-inorganic perovskite solar cells employ metal-halide absorbers such as cesium lead halides to deliver a robust alternative to hybrid organic–inorganic materials. Their fully inorganic composition confers enhanced thermal stability and moisture tolerance, addressing the principal degradation pathways of conventional perovskites. Advances in crystal engineering, interface design and scalable deposition methods have driven power conversion efficiencies beyond 18 %, whilst retaining operational lifetimes under continuous illumination. Progress in defect passivation, grain-boundary control and tailored charge-transport layers has unlocked high open-circuit voltages and reduced non-radiative losses. The broad band-gap tunability of mixed-halide compositions enables tandem integration with silicon or copper-indium-gallium-diselenide technologies, opening pathways to exceed single-junction efficiency limits. Continued refinements in low-temperature processing, inkjet and screen printing promise roll-to-roll manufacturing, paving the way for large-area modules with both high performance and long-term reliability. Inorganic perovskites thus stand poised to contribute significantly to the global quest for stable, high-efficiency solar energy conversion.

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Inorganic Perovskite Solar Cells and Photovoltaic Performance publication trend

The graph below shows the total number of articles in inorganic perovskite solar cells and photovoltaic performance across all publications each year (not limited to Nature Index journals).

Technical terms

Inorganic perovskite: A metal-halide semiconductor with a three-dimensional crystal lattice composed solely of inorganic ions, used as the photoactive layer in next-generation solar cells.

Power conversion efficiency (PCE): The ratio of electrical power output to incident solar power input, expressed as a percentage.

Defect passivation: Strategies to neutralise electronic trap states in crystal or at interfaces, reducing recombination losses and improving device performance.

Grain boundary: The interface between individual crystallites in a polycrystalline film, which can serve as recombination centres unless properly managed.

Hole transport material: A layer or component that selectively extracts and conducts positive charge carriers (holes) from the light absorber to the electrode.

References

1. Cross‐layer all‐interface defect passivation with pre‐buried additive toward efficient all‐inorganic perovskite solar cells. Carbon Energy (2024).
2. Inkjet‐Printing Controlled Phase Evolution Boosts the Efficiency of Hole Transport Material Free and Carbon‐Based CsPbBr3 Perovskite Solar Cells Exceeding 9%. Energy & Environmental Materials (2023).
3. Accelerated Sequential Deposition Reaction via Crystal Orientation Engineering for Low‐Temperature, High‐Efficiency Carbon‐Electrode CsPbBr3 Solar Cells. Energy & Environmental Materials (2023).
4. All-Inorganic Perovskite Solar Cells: Recent Advancements and Challenges. Nanomaterials (2022).