A ternary plasmonic photocatalyst consisting of Au-decorated V2O5@ZnO heteronanorods was successfully fabricated by an innovative four-step process: thermal evaporation ZnO powders, CVD intermediate on ZnO, solution deposition Au NPs, and final oxidization. SEM, TEM, EDX, XPS, XRD analyses revealed that the interior cores exterior shells as-prepared were single-crystal wurtzite-type polycrystalline orthorhombic V2O5, respectively, with a large quantity NPs inlaid in V2O5 shell. The optical...

Hollow MoS₂ micro@nano-spheres were successfully fabricated. The nanostructures showed excellent photocatalytic activity and high sensitivity at RH.

A novel hierarchical MoS2@SnO2 hetero-nanoflower was successfully synthesized by a facile, two-step hydrothermal method without using any additives or surfactants. One possible growth mechanism of the hetero-nanostructure presented in detail based on OH(-) ion-dependent experimental facts. Due to formation p-n junctions and increased specific surface area composites, an outstanding photocatalytic activity as-prepared sample obtained monitoring photodegradation methylene blue (MB). According...

Multi-layered VS₂ nanosheets were synthesized <italic>via</italic> a facile hydrothermal process. Due to the large quantities of sharp edges, showed excellent field emission properties and their performance was further improved by ZnO nanoparticle coating.

Porous V2O5 micro/nano-tubes were synthesized via a modified chemical vapor deposition process and possible growth mechanism was proposed. The have large surface area because of their tubular structure with porous wall. A humidity sensor based on single micro/nano-tube constructed, sensing measurements indicated fast response/recovery. Due to the area, used as cathode material for lithium-ion batteries that exhibited great improvement electrochemical performance such high lithium-storage...

The magnetic skyrmionium can be seen as a coalition of two skyrmions with opposite topological charges and has potential applications in next-generation spintronic devices. Here, we report the current-driven dynamics ferromagnetic nanotrack voltage-controlled anisotropy. pinning depinning controlled by voltage gate are investigated. used to mimic diode effect gate. We have further studied driven anisotropy gradient absence spin current. performance single wedge-shaped at different...

A novel hierarchical three-dimensional (3D) Cu2S@ZnO heteroarchitecture was successfully synthesized by a facile three-step synthetic process. FESEM and TEM analyses revealed the formation of 3D structure as-prepared Cu2S@ZnO. The purity crystalline phase individual component in were determined powder X-ray diffractogram. leads to multiple p–n junctions formed at p-Cu2S@n-ZnO interfaces, which promote generation separation photoinduced electrons holes thus improves photocatalytic efficiency...

ZnO nanotetrapods were used as templates, and patterned VO₂@ZnO grown on an ITO/glass substrate <italic>via</italic> a low-temperature CVD method. These showed strongly enhanced temperature-dependent FE properties.

Three different kinds of V2O5/ZnO heteronanorods were synthesized through a CVD process and oxidized in air at temperatures 350, 420 500 °C. These 1D formed from ZnO nanorods (NRs) coated with V2O5 nanoparticles (NPs). With the rise oxidation temperature, NPs found to be growing their crystallinity gradually improved. Photoluminescence (PL) spectra for these samples exhibited some novel characteristics, such as appearance new emission peaks, variation PL intensity, tremendously enhanced...

VO2(B), VO2(M), and V2O5 are the most famous compounds in vanadium oxide family. Here, their gas-sensing properties were investigated compared. VO2(B) nanoflakes first self-assembled via a hydrothermal method, then VO2(M) obtained after heat-phase transformation nitrogen air, respectively. Their microstructures evaluated using X-ray diffraction scanning transmission electron microscopies, Gas sensing measurements indicated that gas-insensitive, while both highly selective to ammonia at room...

Abstract VO 2 (B) nanoflowers were synthesized via hydrothermal method, and (M) obtained through heat‐transformation. Two sensors based on fabricated their humidity characteristics studied. It was found that these exhibited fast response recovery, perfect reproducibility good stability. The type sensor is more sensitive at high RH can be used for detection. On the contrary, has a higher sensitivity low , detection, which difficult many other semiconductor oxides.

Bundlelike VO2(B) nanostructures were synthesized via a hydrothermal method, and VO2(M1/R) nanobundles obtained after heat-treatment process. Structural characterization shows that these are self-assembled by VO2 nanowires, have better crystallinity. Temperature-dependent field-emission (FE) measurement indicates FE properties of two phases can both be improved increasing the ambient temperature. Moreover, for nanobundles, their also strongly dependent on temperature-induced metal–insulator...

Few-layer transition metal disulfides have attracted much attention in the field of optoelectronic devices due to their unique optical and electronic properties. Among them, 2-D tantalum diselenide (TaSe2) nanocrystals excellent flexibility, fast response properties, outstanding chemical stability, light absorption thus potential applications sensors. Here, we present for first time an biosensor based on multilayer 2H-phase TaSe2/graphene, which can respond subtle refractive index changes...

A polyol method was first employed to synthesize MoS2@MWNT nano-flower composites. Due their high conductivity, large aspect ratio and sharp edges, an excellent field emission performance obtained relative pure MoS2 with the turn-on decreasing from 5.3 V μm−1 2.7 threshold 8.0 μm−1. When used as anode materials for Li-ion batteries in aqueous electrolyte, composites exhibit a highest specific capacity of 1217 mA h g−1 at current 100 g−1, cycling stability high-rate capability, 851 which...

The effects of temperature on the optical properties InGaN/GaN quantum well (QW) light-emitting diodes have been investigated by using six-by-six K-P method taking into account dependence band gaps, lattice constants, and elastic constants. numerical results indicate that increase leads to decrease spontaneous emission rate at same injection current density due redistribution carrier non-radiative recombination rate. product Fermi-Dirac distribution functions electron fcn hole (1−fvUm) for...

While conventional microelectronic integrated circuits based on electron charges approach the theoretical limitations in foreseeable future, next-generation nonvolatile logic units spins have potential to build networks of low power consumption. Central this spin-based architecture is development a paradigm for in-memory computing with magnetic units. Here, we demonstrate basic function transistor unit patterned Y-shaped NiFe nanowires by gate-controlled domain-wall pinning and depinning....

Cu2O–TiO2–ZnO ternary nano-heteroarchitectures were designed and successfully fabricated using titanium (IV) oxideacetylacetonate (TiO(acac)2) as a precursor polyethyleneimine (PEI) binding agent. Field emission photocatalytic activities of pure Cu2O nanopines, Cu2O–TiO2 core–shell nanopines composites investigated compared. The results revealed that the as-prepared nano-heterojunctions nanoparticles at surface remarkably enhanced field nanopines. induced interfacial states energy band...

The low sulfur utilization, cycling instability, and sluggish kinetics are the critical obstructions to practical applications of lithium-sulfur batteries (LSBs). Constructing hosts with high conductivity, suppressed shuttle effect, rapid is essential for their application in LSBs. Here, we synthetically utilized merits ZnSe quantum dots (QDs) layered Ni(OH)2to boost performance A novel core-shell ZnSe-CNTs/S@Ni(OH)2was constructed using ZnSe-CNTs network as framework load following...