Advent of 2D Rhenium Disulfide (ReS₂): Fundamentals to Applications

Abstract

Rhenium disulfide (ReS2) is a two dimensional (2D) group VII transition metal dichalcogenide (TMD). It is attributed with structural and vibrational anisotropy, layer independent electrical and optical properties, and metal-free magnetism properties. These properties are unusual compared with more widely used group VI-TMDs e.g. MoS2, MoSe2, WS2 and WSe2. Consequently, it has attracted significant interest in recent years and is now being used for a variety of applications including solid state electronics, catalysis, and, energy harvesting and energy storage. It is anticipated that ReS2 has the potential to be equally used in parallel with isotropic TMDs from group VI for all known applications and beyond.Therefore, a review on ReS2 is very timely. In this first review on ReS2, we critically analyze the available synthesis procedures and their pros-cons, atomic structure and lattice symmetry, crystal structure and growth mechanisms with an insight to the orientation and architecture of domain and grain boundaries, decoupling of structural and vibrational properties, anisotropic electrical, optical and magnetic properties impacted by crystal imperfections, doping and adatoms adsorptions, and the contemporary applications in different areas.

Ultrathin 2D GeSe2 Rhombic Flakes with High Anisotropy Realized by Van der Waals Epitaxy

“…Ultrathin 2D semiconductors comprising transition metal chalcogenides (TMCs), [1][2][3][4][5][6] hybrid perovskites, [7,8] or group III-VIA compounds [9][10][11] have attracted intense attention as key building blocks for electronics and optoelectronics due to their large specific surface area, tunable optical properties, and quantum confinement effect, which is a result of their ultrathin form. [12][13][14] To produce logic circuits with low power consumption and high integration, p-type semiconductors are desired; as a layered p-type semiconductor with a wide bandgap of 2.7 eV, GeSe 2 can compensate for the rarity of p-type semiconductors.…”

Low-Dimensional ReS2/C Composite as Effective Hydrodesulfurization Catalyst

“…The synthesis of ReS 2 has received special attention due to its recently discovered distinctive properties, which may derive from its electronic structure [15]. However, most of the syntheses are directed to the production of single crystalline layers, or few-layer thin crystals for electronic applications [16]. These ordered compounds have been successfully obtained by chemical vapour deposition (CVD) [17,18], by physical vapour desposition (PVD) [19], and by microwave-induced plasma methods [20].…”

Identifying light impurities in transition metal dichalcogenides: the local vibrational modes of S and O in ReSe2 and MoSe2

“…Once the center of inversion is eliminated in a random alloy, all 33 modes become Ramanactive in principle. There have been very few Raman studies of sulfur-doped ReSe 2 32,42 though Liu et al reported the Raman spectrum of the ReSeS ternary alloy. However, with 33 modes spread over a range of 100-500 cm −1 , the analysis of this spectrum is not trivial.…”

“…They belong to the transition metal dichalcogenide (TMD) family reported by Wilson and Yoffe 1 but, unlike more wellknown TMDs, their structure is highly anisotropic in the layer plane and this is reflected in all their physical properties. [2][3][4] The class of van der Waals layered semiconductors with in-plane anisotropy is a topic of great current interest and, besides ReS 2 and ReSe 2 , it includes black phosphorus, [5][6][7] GeS, 8 transition metal trichalcogenides 9 and Sb 2 Se 3 . 10 Proposed applications of ReX 2 (X = S, Se) include plasmonic materials, 11 polarization-sensitive photodetectors with high sensitivity, [12][13][14][15] inverters, 16 catalytic devices, 17,18 and few-layer field effect 19,20 or heterojunction 21 transistor structures.…”