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2D layered magnets, such as iron chalcogenides, have emerged these years as a new family of unconventional superconductors and provided the key insights to understand the phonon‐electron interaction and pairing mechanism. Their mechanical properties are of strategic importance for the potential applications in spintronics and optoelectronics. However, there is still a lack of efficient approach to...
Sodium‐ion batteries (SIBs) have received increasing attention because of their appealing cell voltages and cost‐effective features. However, the atom aggregation and electrode volume variation inevitably deteriorate the sodium storage kinetics. Here a new strategy is proposed to boost the lifetime of SIB by synthesizing sea urchin‐like FeSe2/nitrogen‐doped carbon (FeSe2/NC) composites. The robust...
Tuning the optical properties of 2D direct bandgap semiconductors is crucial for applications in photonic light source, optical communication, and sensing. In this work, the excitonic properties of molybdenum disulphide (MoS2) are successfully tuned by directly depositing it onto silica microsphere resonators using chemical vapor deposition method. Multiple whispering gallery mode (WGM) peaks in the...
The existence of defects in 2D semiconductors has been predicted to generate unique physical properties and markedly influence their electronic and optoelectronic properties. In this work, it is found that the monolayer MoS2 prepared by chemical vapor deposition is nearly defect‐free after annealing under ultrahigh vacuum conditions at ≈400 K, as evidenced by scanning tunneling microscopy observations...
In article number 1602967, Yanfeng Zhang, and Zhongfan Liu, and co‐workers demonstrate that sulfur vacancies generated in MoS2/graphene heterostructures via a temperature‐triggered process, lead to a decrease of the bandgap and n‐doping effect of single layer MoS2.
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