Upscaling the urea method synthesis of CoAl layered double hydroxides

• Camilo Jaramillo-Hernández,
• Víctor Oestreicher,
• Martín Mizrahi and
• Gonzalo Abellán

Beilstein J. Nanotechnol. 2023, 14, 927–938, doi:10.3762/bjnano.14.76

• ]. These materials play a key role both from a fundamental point of view and regarding potential applications in electronic devices, drug delivery, and energy storage and conversion, to name a few [5][6][7][8]. Layered materials range from monoelementals (i.e., graphene, silicene, germanene, or pnictogens

Interaction of Te and Se interlayers with Ag or Au nanofilms in sandwich structures

• Arkadiusz Ciesielski,
• Lukasz Skowronski,
• Marek Trzcinski,
• Ewa Górecka,
• Wojciech Pacuski and
• Tomasz Szoplik

Beilstein J. Nanotechnol. 2019, 10, 238–246, doi:10.3762/bjnano.10.22

• , the segregation of Se and Te atoms through the silver or gold layers is one of the most promising alternatives for fabricating 2D selenium (selenene) and tellurium (tellurene) in a similar way that germanene and silicene were fabricated by Kurosawa et al. [29]. This is important due to unusual optical

Two-dimensional semiconductors pave the way towards dopant-based quantum computing

• José Carlos Abadillo-Uriel,
• Belita Koiller and
• María José Calderón

Beilstein J. Nanotechnol. 2018, 9, 2668–2673, doi:10.3762/bjnano.9.249

• materials may vary and eventually be tuned by an electric field, for instance, in the case of buckled silicene and germanene [31]. There is much less information on the dielectric screening of 2D materials, which also depends on the substrate and environment. It has been calculated only for a few cases (for

• small ε region is expanded. In general, in this yellow–orange–red region we find the first three materials in Table 1, and possibly silicene and germanene if their band gap energies were suitably enhanced. In order to estimate binding energies and Bohr radii, we assume ε ≈ 5 for the first three

Silicene, germanene and other group IV 2D materials

• Patrick Vogt

Beilstein J. Nanotechnol. 2018, 9, 2665–2667, doi:10.3762/bjnano.9.248

• Patrick Vogt Institut für Physik, Technische Universität Chemnitz, Reichenhainer Str. 70, Chemnitz, Germany 10.3762/bjnano.9.248 Keywords: 2D materials; germanene, silicene; The discovery of graphene and its tremendous impact on scientific research has initiated the search for other elemental

• methods. The synthesis of germanene (2D germanium) was reported in 2014 [4] and the synthesis of stanene (2D tin) in 2016 [5]. Except for their 2D character, these materials are substantially different from prototypical graphene. First of all, these materials do not exist in nature, nor do their 3D

• atomic size of the involved elements. This opens the way to observe a quantum spin Hall effect, for example, in germanene or stanene in an accessible temperature range, possibly even at room temperature. The occurrence of topologically nontrivial properties will be more robust for the heavier

Intercalation of Si between MoS₂ layers

• Rik van Bremen,
• Qirong Yao,
• Soumya Banerjee,
• Deniz Cakir,
• Nuri Oncel and
• Harold J. W. Zandvliet

Beilstein J. Nanotechnol. 2017, 8, 1952–1960, doi:10.3762/bjnano.8.196

• -dimensional sheet. In addition, the calculations of Takeda and Shiraishi [5] also revealed that silicene and germanene are semi-metals, like graphene. In 2007, Guzmán-Verri and Lew Yan Voon [6] performed tight-binding calculations of two-dimensional silicon. They pointed out that the graphite-like silicon

• robust against the buckling of the silicene lattice [5][7]. In 2009, Cahangirov et al. [7] found that germanene also exhibits similar properties as graphene and silicene. Similar to graphene, the electrons near the Fermi level in free-standing silicene are predicted to behave as massless Dirac fermions

• monolayer of MoS2 [23]. This means that MoS2 has no states near the Fermi level and therefore hybridization with the energy bands of silicene near the Fermi level cannot occur. Recently, germanene, a 2D allotrope of germanium [24][25][26][27][28], has already been successfully grown on MoS2 [29]. Chiappe et

Coexistence of strongly buckled germanene phases on Al(111)

• Weimin Wang and
• Roger I. G. Uhrberg

Beilstein J. Nanotechnol. 2017, 8, 1946–1951, doi:10.3762/bjnano.8.195

• an atomic model consisting of a strongly buckled (2×2) germanene layer, which is stable in two different orientations on Al(111). Simulated STM of both orientations fit nicely with experimental STM images and the Ge 3d core-level data decomposed into four components is consistent with the suggested

• model. Keywords: core-level spectroscopy; DFT; germanene; STM; Introduction The properties of two-dimensional (2D) materials are currently subjected to intense experimental and theoretical studies. The research is focused on many important properties predicted by theory for various conceivable 2D

• -like structures formed by the group IV atoms Si, Ge and Sn, i.e., silicene, germanene and stanene. However, Si, Ge, and Sn atoms prefer sp3 hybridization, resulting in a buckled honeycomb structure with a mixture of sp2-sp3 character [1][2][3]. As a result, the spin-orbital coupling is enlarged and the

Adsorption and diffusion characteristics of lithium on hydrogenated α- and β-silicene

• Fadil Iyikanat,
• Ali Kandemir,
• Cihan Bacaksiz and
• Hasan Sahin

Beilstein J. Nanotechnol. 2017, 8, 1742–1748, doi:10.3762/bjnano.8.175

• attention [1][2]. This family consists of a large variety of materials such as hexagonal boron nitride (hBN) [3][4], silicene [5][6][7], germanene [8], transition-metal dichalcogenides (TMDs) [9][10][11][12][13][14], transition-metal trichalcogenides (TMTs) [15][16], phosphorene [17] and gallium

3D continuum phonon model for group-IV 2D materials

• Morten Willatzen,
• Lok C. Lew Yan Voon,
• Appala Naidu Gandi and
• Udo Schwingenschlögl

Beilstein J. Nanotechnol. 2017, 8, 1345–1356, doi:10.3762/bjnano.8.136

• ) based codes. One of the earliest applications to group-IV elemental 2D materials was for the important prediction of the stability of silicene and germanene [1]. These are complex calculations and prone to qualitative errors due to the various approximations such as convergence criteria and use of

Calculations of helium separation via uniform pores of stanene-based membranes

• Guoping Gao,
• Yan Jiao,
• Yalong Jiao,
• Fengxian Ma,
• Liangzhi Kou and
• Aijun Du

Beilstein J. Nanotechnol. 2015, 6, 2470–2476, doi:10.3762/bjnano.6.256

• -dimension materials with an ideal pore size is desired for helium separation. As a new member of the family of layered materials following graphene, silicene and germanene, 2D stanene has been recently successfully fabricated by molecular beam epitaxy [14]. 2D stanene possesses a graphene-like honeycomb