The synthesis of new Xenes and their potential applications prototypes have achieved significant milestones so far. However, to date the realization Xene heterostructures in analogy with well known van der Waals remains an unresolved issue. Here, a heterostructure concept based on epitaxial combination silicene stanene Ag(111) is introduced, how one layer enables another different nature grow t...

Vertically aligned titanium dioxide nanotube (TNT) arrays codoped with nitrogen and 3d transition metals were successfully fabricated using anodization and nitridation processes. The codoping of N and Fe yielded the highest visible-light-induced photoelectrochemical water oxidation due to bandgap narrowing of impurity levels by N and Fe.

We report dynamic alternation of the redox chemistry of the Fe/ Fe couple in magnetite during high temperature water−gas shift reaction in Cu codoped Mmodified ferrite catalysts. Various hematitic solid solutions of the type Fe2O3−MxOy−CuOx with M = Cr, Ce, Ni, Co, Mn, and Zn are synthesized using the industrially economical and environmentally friendly coprecipitation method. Interestingly, Cu...

Axion like particles (ALPs) and right-handed neutrinos (RHNs) are two well-motivated dark matter (DM) candidates. However, these have a completely different origin. was proposed to solve the strong CP problem, whereas RHNs were introduced explain light neutrino masses through seesaw mechanisms. We study case of ALP portal RHN DM (Majorana DM) taking into account existing constraints on ALPs. co...

We derive partial-wave unitarity constraints on gauge-invariant interactions of an axionlike particle up to dimension-6 from all allowed $2\ensuremath{\rightarrow}2$ scattering processes in the limit large center-of-mass energy. find that strongest bounds stem amplitudes with one external and only apply coupling a pair $SU(2{)}_{L}$ gauge bosons. Couplings $U(1{)}_{Y}$ $SU(3{)}_{C}$ bosons ferm...

Changes in axial stress and refractive index have been measured as a function of the total UV-irradiation fluence during the formation of Bragg gratings in B/Geand Sn/Ge-codoped core fibers. For the B/Ge-codoped core fiber, a fast development of the type-I grating with a significant increase in refractive index and tensile stress in the fiber core is followed by a slow growth of the type-IIA gr...

Lithium-sulphur batteries with a high theoretical energy density are regarded as promising energy storage devices for electric vehicles and large-scale electricity storage. However, the low active material utilization, low sulphur loading and poor cycling stability restrict their practical applications. Herein, we present an effective strategy to obtain Li/polysulphide batteries with high-energ...

We report the first demonstration of superbroadband emission extending from 1.30 to 1.68 μm in praseodymium(Pr(3+))-erbium(Er(3+)) codoped fluorotellurite glasses under 488 nm excitation. This superbroad near-infrared emission is contributed by the Pr(3+): (1)D(2)→(1)G(4) and Er(3+): (4)I(13/2)→(4)I(15/2) transitions which lead to emissions located at 1.48 and 1.53 μm, respectively. The quenchi...