The emergence of two-dimensional (2D) materials has led to tremendous interest in the study graphene and a series mono- few-layered transition metal dichalcogenides (TMDCs). Among these TMDCs, molybdenum disulfide (MoS2) gained increasing attention due its promising optical, electronic, optoelectronic properties. Of particular is indirect direct band-gap from bulk structures mono-layered MoS2, respectively. In this review, properties summarized. use Raman Photoluminescence (PL) spectroscopy...

Organic pollutants from synthetic organic compounds (SOCs) and oil spills have led to significant water contamination. This article review the progress of oil–water separation using nanotechnology concern contamination by nanomaterials.

High-quality boron nitride nanotubes (BNNTs) were functionalized for the first time with water-soluble and biocompatible PEGylated phospholipid [methoxy-poly(ethylene glycol)-1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N conjugates (mPEG-DSPE)]. We found that BNNTs can be suspended in water more than 3 months without precipitation. By comparing dispersion stability of mPEG-DSPE/BNNTs various solvents related Hansen solubility parameters, we polarized hydrogen bonds between hydrophilic...

Two-dimensional transition metal dichalcogenides (2D TMDCs) offer several attractive features for use in next-generation electronic and optoelectronic devices. Device applications of TMDCs have gained much research interest, significant advancement has been recorded. In this review, the overall devices based on are summarized discussed. particular, we focus evaluating field effect transistors (FETs), photovoltaic cells, light-emitting diodes (LEDs), photodetectors, lasers, integrated...

In this review, we examine recent progress using boron nitride (BN) and molybdenum disulfide (MoS2) nanostructures for electronic, energy, biomedical, environmental applications. The scope of coverage includes zero-, one-, two-dimensional such as BN nanosheets, nanotubes, quantum dots, MoS2 dots. These materials have sizable bandgaps, differentiating them from other metallic or small-bandgap materials. We observed two interesting trends: (1) an increase in applications that use heterogeneous...

One-dimensional arrays of gold quantum dots (QDs) on insulating boron nitride nanotubes (BNNTs) can form conduction channels tunneling field-effect transistors. We demonstrate that currents be modulated at room temperature by tuning the lengths QD-BNNTs and gate potentials. Our discovery will inspire creative use nanostructured metals insulators for future electronic devices.

Abstract For the first time, we report thermal conductivity of vertically aligned boron nitride nanotube (BNNT) films produced by catalytic chemical vapor deposition. High-quality BNNTs were synthesized at 1200 °C on fused silica substrates precoated with Pt thin-film thermometers. The was measured room temperature using a pulsed photothermal technique. apparent BNNT coatings increased from 55 to 170 W m −1 K when thickness 10 28 µm, while attained value as high 2400 . These results...

To explain the negative capacitance (NC) characteristic of multi-quantum-well (MQW) LEDs, we calculated continuity equation for a 10-period AlGaInP/GaInP LED with mesa size 90 × 150 μm and build an MQW capacitor model. The carrier concentrations capacitance–voltage characteristics across every quantum well region were analyzed by accounting spontaneous, Auger, SRH recombination. In our model, dynamic lifetime iteration method iterative error less than 1 10−14 ns was used to decouple electric...

This review examines three aspects of hexagonal boron nitride (h-BN) nanomaterials: properties, synthesis methods, and biomedical applications. We focus the scope on types h-BN nanostructures: nanosheets (BNNSs, few-layered h-BN, larger than ∼100 nm in lateral dimensions), quantum dots (BN QDs, smaller ∼10 all dimensions, with inherent excitation-dependent fluorescence), dots, wide bandgap without noise fluorescence). The methods BNNSs, BN are summarized top-down bottom-up approaches. Future...

A series of Ni(II), Co(II), Zn(II) and Cd(II) complexes with polytopic Schiff base ligands have been synthesized. The single-crystal X-ray crystallography results show that tetranuclear common face-shared defective dicubane cores, whereas trinuclear are almost linear entities. Synthesis methods (solvent evaporation hydrothermal synthesis), reaction conditions (pH, solvents dosage) coligands (azide, methanol, chloride acetate) play vital roles in determining the final structure therefore...

Molybdenum disulfide quantum dots (MoS2 QDs) are a unique class of zero-dimensional (0D) van der Waals nanostructures. MoS2 QDs have attracted significant attention due to their optical, electronic, chemical, and biological properties the presence edge states these for various chemical functionalization. Their novel enabled applications in many fields, including advanced electronics, electrocatalysis, biomedicine. In this review, synthesis techniques, properties, wide discussed detail.

Metallic gold nanoparticles (Au NPs) with multilayer Au atoms are useful for plasmonic, chemical, medical, and metamaterial application. In this article, we report the opening of bandgap in substrate-supported two-dimensional (2D) quantum dots QDs) monolayer atoms. Calculations based on density functional theory suggest that 2D QDs energetically favorable over 3D clusters when coated hexagonal boron nitride (BN) surfaces. Experimentally, find BN nanotubes (BNNTs) can be used to stabilize...

In this paper, the edge strain relaxation of InGaN/GaN MQW micro-pillars is studied. Micro-pillar arrays with a diameter 3–20 μm were prepared on blue GaN LED wafer by inductively coupled plasma (ICP) etching. The peak wavelength shift caused was tested using micro-LED pillar array room temperature photoluminescence (PL) spectrum measurements. results show that there nearly 3 nm between micro-pillar arrays, high range region in small size pillar. Furthermore, 19 pillar’s Raman employed to...

Enhanced light transmission through coupling incident with surface plasmon polaritons (SPPs) on a layer-plus-islands nanostructure Ag layer, surrounded by symmetric ZnO dielectrics (ZnO/Ag/ZnO), was investigated. The couple and decouple processes at ZnO/Ag Ag/ZnO grating interfaces were considered to confine the SPPs (near field) then excite radiate (far field), which enhanced transmission. A broad range of enhancement showed blueshift increasing midlayer mass thickness. physical reasons for...

Irradiation‐induced vacancy defects in multiwalled (MW) boron nitride nanotubes (BNNTs) are investigated via situ high‐resolution transmission electron microscope operated at 80 kV, with a homogeneous distribution of beam intensity. During the irradiation triangle‐shaped gradually generated MW BNNTs under mediate current density (30 A cm −2 ), by knocking B atoms out. The grow along well‐defined direction within wall early stage as result curvature induced lattice strain, and then develop...

In order to obtain a flexible aerogel substrate for conductive materials used in the electrode, polydopamine-anchored cellulose nanofiber (PDA@CNF) was introduced into polyethylene imine-poly(vinyl alcohol) (PEI-PVA) cross-linking network which 4-formylphenylboronic acid (4FPBA) as bridge. The incorporation of rigid CNF structural scaffold effectively improved pore architecture aerogel, potentially providing substantial advantages infiltration and deposition materials. Additionally,...