Vertically Aligned Graphene‐Analogous Low‐Dimensional Materials: A Review on Emerging Trends, Recent Developments, and Future Perspectives

Abstract

2D materials currently includes graphene, transition metal dichalcogenides (TMDs), hexagonal boron nitride (h-BN), 2D carbides/nitrides (MXenes), monoelemental Xenes, and perovskites. [2][3][4][5][6] These families opened new horizons for advanced applications since they have unusual electronic, mechanical, and optical properties. Though these materials have layered structures, yet their diversity in properties highly depends on their composition and phases.Graphene owns interesting properties like large surface area, dangling bond-free surface, high carrier mobility, high optical absorption coefficient, high Young's modulus, and high thermal conductivity. [7] However, the zero bandgap and semimetal properties of graphene limit its application in switching devices. h-BN attracted magnetized attention due to its superb chemical stability and intrinsic insulation. [8] As one of the most studied families, TMDs offer diversity in compositions, and phases, which exhibit many technologically interesting properties. [9][10][11] Among TMDs, MoS 2 is the most examined and well-explored material due to its robustness and semiconducting properties. TMDs offer a unique combination of atomic-scale thickness, strong spin-orbit coupling, sizeable bandgap, and favorable optoelectronic properties for numerous applications. [12] MXenes represent a large family of 2D materials whose several structures were predicted theoretically, while several of them have been realized experimentally also such as Ti

A review on the sensing mechanisms and recent developments on metal halide-based perovskite gas sensors

“…the Curie-Weiss law, having values of y = À6.9 K and C = 4.14 emu mol À1 . 78 79 The prediction of Kotani behavior for low-spin d 5 is analogous to the aforementioned temperature-independent moment. In organo-metal halide perovskites, the interaction between intrinsic and extrinsic spins provides intriguing spindependent dynamics (Fig.…”

“…In the last few decades, research has mostly focused on finding or designing innovating lowdimensional nanomaterials and improving their properties for this cutting-edge technology. [4][5][6][7] Materials such as graphene, carbon nanotubes, black phosphorus, metal oxides, MXenes, transition metal dichalcogenides, and perovskites have been considered potential candidates for sensing applications. [8][9][10][11][12][13] Their high sensitivity towards gases such as NO 2 , NH 3 , H 2 S, H 2 , and CO 2 is attributed to their excellent electrical properties, outstanding mechanical performance, and high surface-tovolume ratio.…”

Anisotropic Crystal Growth of Layered Vanadates with Bulky Interlayer Cations

“…Highly oriented nanosheets in thin films have interesting electric, optical, magnetic, thermal, and mechanical properties. [ 1 ] For example, thin films consisting of vertically aligned nanosheets exhibit effective Förster resonance energy transfer from fluorophores on the thin films, [ 2 ] provide surfaces with antibacterial properties, [ 3 ] and become the electrodes of lithium‐ion batteries with rapid charge (electron and ion) transport. [ 4 ] Thus, the fabrication of vertically aligned nanosheets has attracted increasing attention and has been extensively studied.…”

“…[ 4 ] Thus, the fabrication of vertically aligned nanosheets has attracted increasing attention and has been extensively studied. [ 1–5 ]…”

“…[4] Thus, the fabrication of vertically aligned nanosheets has attracted increasing attention and has been extensively studied. [1][2][3][4][5] DOI: 10.1002/crat.202200198 Metalate nanosheets are negatively charged 2D materials. They have been prepared by exfoliating layered metalate crystals.…”