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Inorganic halide perovskite materials and solar cells
摘要： Organic-inorganic perovskite solar cells (PSCs) have achieved an inspiring third-party-certificated power conversion efficiency (PCE) of 25.2%, which is comparable with commercialized silicon (Si) and copper indium gallium selenium solar cells. However, their notorious instability, including their deterioration at elevated temperature, is still a serious issue in commercial applications. This thermal instability can be ascribed to the high volatility and reactivity of organic compounds. As a result, solar cells based on inorganic perovskite materials have drawn tremendous attention, owing to their excellent stability against thermal stress. In the last few years, PSCs based on inorganic perovskite materials have seen an astonishing development. In particular, CsPbI3 and CsPbI2Br PSCs demonstrated outstanding PCEs, exceeding 18% and 16%, respectively. In this review, we systematically discuss the properties of inorganic perovskite materials and the device configuration of inorganic PSCs as well as review the progress in PCE and stability. Encouragingly, all-inorganic PSCs, in which all functional layers are inorganic, provide a feasible approach to overcome the thermal instability issue of traditional organic-inorganic PSCs, leading to new perspectives toward commercial production of PSCs.
关键词： inorganic halide perovskite,solar cells,thermal stability,power conversion efficiency,all-inorganic PSCs
更新于2025-09-12 10:27:22
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A Hybrid Inorganic Electron-transporting Layer Coupled with A Halogen-resistant Electrode in CsPbI2Br-Based Perovskite Solar Cells to Achieve Robust Long-term Stability
摘要： Along with the rapidly-developed power conversion efficiencies (PCEs), operational stability of perovskite solar cells (PSCs) becomes the bottleneck for further commercialization. The instability mainly comes from the unstable organic components in the whole devices and the responsive metal electrode to the halogens from perovskites. In this work, we develop a carbide-titanium oxide (C-TiO2) hybrid electron-transporting layer (ETL) and a halogen-resistant Sb electrode on top of the inorganic CsPbI2Br layer to solve the unstable issues. The hybrid C-TiO2 presents uniform and pinhole-free morphology, adequate band structure and electronic property, and observably strong stability. On the other hand, Sb is demonstrated to be effective to restrict inferior ions diffusion and further perovskite decomposition. As a result, our well-designed PSCs achieve both high efficiencies (14.8% for the champion device) and long-term stabilities (< 6% decline @ 85 °C, dark; < 10% decline @ 60 °C, continuous illumination) of 1000 h.
关键词： long term stability,electrode corrosion,Hybrid TiO2 ETLs,inorganic PSCs,inorganic CTLs
更新于2025-09-11 14:15:04