首页|Hydrogen Bonds in Perovskite for Efficient and Stable Photovoltaic
Hydrogen Bonds in Perovskite for Efficient and Stable Photovoltaic
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Owing to their distinctive optical and physical properties,organic-inorganic hybrid perovskite materials have gained significant atten-tion in the field of electronic devices,especially solar cells.The achievement of high-performance solar cells hinges upon the utiliza-tion of top-notch perovskite thin films.Nevertheless,the fabrication process involving solutions and the polycrystalline nature of per-ovskite result in the emergence of numerous defects within the perovskite films,consequently exerting a deleterious influence on the overall performance and stability of the devices.Improving the performance and stability of perovskite solar cells by additive engi-neering to suppress/passivate defects is a viable approach,which involves hydrogen bond interactions in these device engineering processes.This review explores the intrinsic hydrogen bonds in methylammonium and formamidium lead triiodide,while also consid-ering cation rotations,phase transitions,and stability.Moreover,the review classifies additives into distinct categories,including or-ganic small molecules,polymers,nanodots,classical salts,ionic liquids,and molten salts.The various forms and characterization tech-niques of hydrogen bonds are discussed,as well as their potential synergistic effects in conjunction with other chemical interactions.Furthermore,this review offers insights into the potential utilization of hydrogen bonds to further enhance the performance and sta-bility of devices.
Perovskite solar cellsHydrogen bondAdditivePerformanceStabilityCharge transferInhibitionCooperative effects
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