The electronic and optical properties of armchair germanene nanoribbons

The effects of MS2 (M = Mo or W) substrates on electronic properties under electric fields in germanene-based field-effect transistors

“…Germanene with low buckling epitaxy is an essential graphene-like material that can maintain a similar electronic structure to graphene with a planar honeycomb lattice. Several researchers discovered that the wider atomic spacing of germanene induces vertical oscillations of atoms around the honeycomb lattice, rendering the structure more flexible and offering fresh opportunities for covalent functionalization [2][3][4]. So far, germanene has been prepared on a multitude of metal surfaces, such as Pt(111) [5], Al(111) [6], Sb(111) [7], Au(111) [8], etc.…”

A Theoretical Study of Armchair Antimonene Nanoribbons in the Presence of Uniaxial Strain Based on First-Principles Calculations

“…Many researchers have been investigating means to open the bandgap in graphene, such as through the fabrication of graphene nanoribbons (GNRs), which are one-dimensional (1D) materials. , The bandgap of GNRs is inversely proportional to the width of the generated ribbons. After the discovery of graphene, other 2D materials, such as silicene, germanene, molybdenum disulfide (MoS 2 ), phosphorene, arsenene, and antimonene have been realized and investigated. − In addition to their unique properties, 2D materials of group V elements, unlike graphene sheets, have an intrinsic bandgap, making them more promising candidates for future nanoelectronic devices. Recently, several theoretical studies have focused on the geometric, optical, and electronic properties of phosphorene, arsenene, antimonene, and bismuthene. − Several research groups have successfully synthesized 2D materials of group V elements using exfoliation or growth on different substrates. − The ability to synthesize these films increases their potential for a wide range of applications from electronic, optoelectronic, and spintronic devices to sensors and actuators; further potential applications include thermoelectrics, energy conservation, and storage devices. − …”

“…After the discovery of graphene, other 2D materials, such as silicene, germanene, molybdenum disulfide (MoS 2 ), phosphorene, arsenene, and antimonene have been realized and investigated. 8 − 11 In addition to their unique properties, 2D materials of group V elements, unlike graphene sheets, have an intrinsic bandgap, making them more promising candidates for future nanoelectronic devices. Recently, several theoretical studies have focused on the geometric, optical, and electronic properties of phosphorene, arsenene, antimonene, and bismuthene.…”

Electrical and optical properties of C, Ge-doped armchair silicene nanoribbons applied in optoelectronics

“…Especially for structures with widths of 3, 4, 13, 16 atoms, the band gap width decreases rapidly to 0. The optical properties of SiNRs are also thoroughly studied [29][30][31][32][33][34][35][36]. Studies on the optical properties of armchair SiNRs have shown that all studied configurations are semiconductors with a direct band gap suitable for infrared optical applications [32].…”

“…The optical properties of SiNRs are also thoroughly studied [29][30][31][32][33][34][35][36]. Studies on the optical properties of armchair SiNRs have shown that all studied configurations are semiconductors with a direct band gap suitable for infrared optical applications [32]. The study also shows that the electro-optical properties of the system can be tuned over a wide range by tensile and compressive deformations.…”