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Hierarchical self‐assembly of 2D metal‒organic layers (MOLs) for the construction of advanced functional materials have witnessed considerable interest, due to the increasing atomic utilizations and well‐defined atom‒property relationship. However, the construction of atomically precise MOLs with mono‐/few‐layered thickness through hierarchical self‐assembly process remains a challenge, mostly because...
Although tremendous progress has recently been made in quasi‐2D perovskite light‐emitting diodes (PeLEDs), the performance of red PeLEDs emitting at ≈650–660 nm, which have wide prospects for application in photodynamic therapy, is still limited by an inefficient energy transfer process between the quasi‐2D perovskite layers. Herein, a symmetric molecule of 3,3′‐(9H‐fluorene‐9,9‐diyl)dipropanamide...
Copper is known as a conductive metal but an inert catalyst for the hydrogen evolution reaction due to its inappropriate electronic structure. In this work, an active copper catalyst is prepared with high‐energy surfaces by adopting the friction stir welding (FSW) technique. FSW can mix the immiscible Fe and Cu materials homogenously and heat them to a high temperature. Resultantly, α‐Fe transforms...
The stability of solid electrolyte interphase (SEI) layers is critical for developing lithium (Li) metal batteries. However, the fabrication of stable SEI layers is plagued by un‐controlled structures, properties, and functions. Here a controllable design of an ordered LiF‐rich and lithiophilic hybrid Janus interphase (LiF‐HJI) is reported using organic fluorination reagent as a functional SEI precursor...
Graphene oxide (GO) is promising in the fight against pathogenic bacteria. However, the antibacterial activity of pristine GO is relatively low and concern over human cytotoxicity further limits its potential. This study demonstrates a general approach to address both issues. The developed approach synergistically combines the water shock treatment (i.e., a sudden decrease in environmental salinity)...
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