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It is challenging to achieve long‐term stability of perovskite solar cells due to the corrosion and diffusion of metal electrodes. Integration of compact barriers into devices has been recognized as an effective strategy to protect the perovskite absorber and electrode. However, the difficulty is to construct a thin layer of a few nanometers that can delay ion migration and impede chemical reactions...
Efforts to enable fast charging and high energy density lithium‐ion batteries (LIBs) are hampered by the trade‐off nature of the traditional electrode design: increasing the areal capacity usually comes with sacrificing the fast charge transfer. Here a single‐layer chunky particle electrode design is reported, where red‐phosphorus active material is embedded in nanochannels of vertically aligned graphene...
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