Diamane quasicrystals

Progress in Diamanes and Diamanoids Nanosystems for Emerging Technologies

“…[1,93] Overall, the computational study could provide a general guide to understand the stability, symmetry, and formation of diamanes. [40,94]…”

“…Doing so, CCCC stacking in the vertical direction (in the form of 111 stacking) is prevalent until four carbon atoms are placed in a unit cell, leading to the formation of diamane. [39,40] The hybridized layer of diamond or lonsdaleite exhibits hexagonal or cubic lattice (Figure 2b), provided that half of the carbon is hydrogenated, and the other half is bonded to the neighboring carbon layers (Figure 2b). Even though all these processes occur just at a very small nanometer scale, the final product is important on a much greater scale.…”

“…The Stone-Wales defect in graphene and related systems are shown in the HRTEM image (Figure 3f), as described elsewhere. [40,56,61] The schematic structure of graphene, a key component of diamanes and diamanoids, is shown in Figure 3h, for comparison, even though all the three are entirely dissimilar in nature. [56][57][58][59][60][61]63] The rhombohedral sequential layer has also been reported in the case of conversion of multilayered graphene to ultra-thin diamond films via chemical functionalization.…”

“…[51,[58][59][60][61] Captivatingly, ferromagnetic behavior becomes dominant at a high concentration of holes in nitrogen substituted diamane, exhibiting new magnetic behavior in quasi-particles. [33,[39][40][41][42] Creating silicon (Si) vacancy also slightly enhances the paramagnetism and spin ordering state in diamane. As reported, lowering the Bohr radius and increasing the radiative rate make diamane different from normal non-doped diamanes in single-photon emission.…”

“…[45,49,80,81] Based on the available literature, the wide bandgap and direct energy gap in diamane are responsible for its optical properties, which can be altered by using several external factors. [40][41][42][43][44][45] Flexible and transparent materials of functionalized diamane have been fabricated which could be useful in nano-photonics devices. [1,80,81] The optical peculiarities, widegap spectra, and many resonance peaks in valent and conductive bands in the density of states are seen as enhanced optical properties in diamanes, which are required for the smooth operation in various optical applications.…”