Noble-transition-metal dichalcogenides-emerging two-dimensional materials for sensor applications

In recent years, 2D noble-transition-metal dichalcogenides (NTMDs) have attracted significant attention for their unique structure and novel properties. Due to the almost full occupation of d orbitals, the 2D NTMDs exhibit strong layer-dependent and adjustable electronic structure and physical properties compared with other transition metal dichalcogenide materials. Therefore, the fascinating physical/chemical properties of 2D NTMDs, such as abundant valence electrons, high carrier mobility, and air stability, have afforded the materials with great prospects in application of optical, gas, and mechanical sensors. However, a comprehensive review on this topic is still missing. Herein, the recent progress in synthesis, characterization, functionalization, and application of 2D NTMDs in various sensors is discussed. Future prospects and perspectives of the emerging 2D NTMDs are proposed based on the existing research.

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