A MoSe2 p–n diode with a van der Waals homojunction is demonstrated by stacking undoped (n-type) and Nb-doped (p-type) semiconducting synthesized chemical vapor transport for Nb substitutional doping. The reveals an ideality factor of ≈1.0 high external quantum efficiency (≈52%), which increases in response to light intensity due the negligible recombination rate at clean interface. As service our authors readers, this journal provides supporting information supplied authors. Such materials...

Single-crystalline monolayer hexagonal WS2 is segmented into alternating triangular domains: sulfur-vacancy (SV)-rich and tungsten-vacancy (WV)-rich domains. The WV-rich domain with deep-trap states reveals an electron-dedoping effect, the electron mobility photoluminescence are lower than those of SV-rich shallow-donor by one order magnitude. vacancy-induced strain doping effects investigated via Raman scanning photoelectron microscopy. As a service to our authors readers, this journal...

One of the unique features atomically thin two-dimensional materials is strong Coulomb interactions due to reduced dielectric screening effect; this feature enables study many-body phenomena such as excitons, trions, and biexcitons. However, identification biexcitons remains unresolved owing their broad peak at room temperature. Here, we investigate multiexcitons in monolayer $\mathrm{Mo}{\mathrm{S}}_{2}$ using both electrical optical doping identify transition energies for each exciton. The...

Abstract The tunability of the bandgap, absorption and emission energies, photoluminescence (PL) quantum yield, exciton transport, energy transfer in transition metal dichalcogenide (TMD) monolayers provides a new class functions for wide range ultrathin photonic devices. Recent strain‐engineering approaches have enabled to tune some these properties, yet dynamic control at nanoscale with real‐time ‐space characterizations remains challenge. Here, nano‐mechanical naturally‐formed wrinkles...

The surfaces of kenaf fibers were treated with three different silane coupling agents. 3-glycidoxypropyltrimethoxy (GPS), 3-aminopropyltriethoxy (APS), and 3-methacryloxypropyltrimethoxy (MPS). Among them, the most effective one for property improvement was GPS when it applied to fiber at 0.5 wt%. Thermoplastic polypropylene (PP) thermosetting unsaturated polyester (UPE) matrix composites chopped untreated concentrations from 0.1 wt% 5 fabricated using compression molding technique. present...

The extreme elastic strain of monolayer transition metal dichalcogenides provides an ideal platform to achieve efficient exciton funneling via local modulation; however, studies conducted thus far have focused on the use substrates with fixed profiles. We prepared 1L-WS2 a flexible substrate such that formation topographic wrinkles could be switched or off, and depth direction wrinkle modified by external strain, thereby providing full control periodic undulation band gap profile in range...

Optoelectronics applications for transition-metal dichalcogenides are still limited by weak light absorption and their complex exciton modes easily perturbed varying excitation conditions, because they inherent in atomically thin layers. Here, we propose a method of selectively amplifying the primary (A0) among complexes monolayer MoS2 via cyclic re-excitation cavity-free exciton-coupled plasmon propagation. This was implemented partially overlapping Ag nanowire (NW) on separated SiO2...

Abstract The recent challenges for improving the operation speed of nanoelectronics have motivated research on manipulating light in on-chip integrated circuits. Hybrid plasmonic waveguides with low-dimensional semiconductors, including quantum dots and wells, are a promising platform realizing sub-diffraction limited optical components. Meanwhile, two-dimensional transition metal dichalcogenides (TMDs) received broad interest optoelectronics owing to tightly bound excitons at room...

Vertically stacked van der Waals (vdW) heterostructures have been suggested as a robust platform for studying interfacial phenomena and related electric/optoelectronic devices. While the interlayer Coulomb interaction mediated by vdW coupling has extensively studied carrier recombination processes in diode transport, its correlation with tunneling transport not elucidated. Here, contrast is reported between drift photocurrents tailored strength MoSe2 /MoS2 hetero-bilayers (HBs). The...

Plasmon coupling and propagation between metallic nanowires (NWs) atomically thin transition-metal dichalcogenide semiconductors are demonstrated using Ag NW/MoS2 hybrids. The high exciton–plasmon efficiency with large throughput of MoS2 excitons allows quantitative assessment plasmon waveguide performance. Monolayer real-space visualization the propagating plasmons along NW via direct plasmon–exciton coupling. As a service to our authors readers, this journal provides supporting information...

In the present study, natural fibers (jute, kenaf and henequen) reinforced thermoplastic (poly(lactic acid) polypropylene) thermosetting (unsaturated polyester) matrix composites were well fabricated by a compression molding technique using all chopped of about 10 mm long, respectively. Prior to green composite fabrication, fiber bundles surface-treated with tap water static soaking dynamic ultrasonication methods, The interfacial shear strength, flexural properties, mechanical properties...

Layered van der Waals materials have recently attracted attention owing to their exceptional electrical and optical properties in thin layer form. One way extend utility is form a heterostructure which combines various of layered reveal intriguing behavior. Conventional synthesis methods are difficult develop the formed can be limited small area. Here, we investigate phase transformation SnS2 SnS by removing sulfur atoms at top surface using Ar plasma. By varying plasma power exposure time,...

We study the propagation properties of surface plasmon polaritons on a Cu by means photoemission electron microscopy. Use CMOS process to fabricate thin film is shown enable very high distances (up 65 μm at 750 nm wavelength), provided that copper native oxide removed. A critical review optical loss mechanisms undertaken and shed light effect single grain boundaries in increasing losses plasmon. microscopic interpretation provided, relying groove induced electromagnetic hot spots.

Monolayer transition metal dichalcogenides (TMDs) with a direct band gap are suitable for various optoelectronic applications such as ultrathin light emitters and absorbers. However, their weak absorption caused by the atomically thin layer hinders more versatile high optical gains. Although plasmonic hybridization nanostructures significantly enhances light–matter interactions, corrosion, instability of nanostructures, undesired effects metal–semiconductor contact act obstacles to its...

Abstract The display manufacturing industry is exploring operational optimization strategies using digital twins to address the challenges of complex production lines and rapidly changing market demands. In this study, we explored an optimal solution release equipment constraints in twin technology deep reinforcement learning. As a result, number released was reduced by 5% compared conventional approach, volume increased 5.6%. To facilitate interaction between containing on‐site reference...

Abstract 2D van der Waals (vdW) semiconductors attract attention for their unique optoelectronic properties and emerging applications, as they exhibit unexplored phenomena in ultrathin films. Beyond stable excitonic characteristics at room temperature, efforts focus on enhancing light‐matter interactions by integrating hybrid structures due to absolute thinness. Here, a method controlling emission suppressing interlayer charge transfer vdW heterojunctions using plasmonic hybridization is...

Although metal-halide perovskite nanocrystals (NCs) have garnered significant attention for optoelectronic applications, the presence of electrically insulating organic ligands in CsPbBr

High-resolution core-level photoemission using synchrotron radiation is applied to the ultrathin SiON films on Si(100) nitrided by ${\mathrm{N}}_{2}$ plasma, which gives a systematic view of various transient or stable N chemical states. $\mathrm{N}\phantom{\rule{0.3em}{0ex}}1s$ spectra disclose at least two characteristic nitrogen bonding states in addition well-established and thermally $\mathrm{N}{\mathrm{Si}}_{3}$ species. While species are located near interface, extra high-binding...

While a hexagonal WS2 monolayer, grown by chemical vapor deposition, exhibits distinctive patterns in photoluminescence mapping, segmented with alternating S-vacancy (SV) and W-vacancy (WV) domains single crystal, the formation mechanism for native defect remains unresolved to date. Here, of via precursor accumulation model is experimentally elucidated. A triangular seed initially formed, followed flake. Alternating W-rich W-deficient are constructed flake, which confirmed confocal mapping...

Abstract Two‐dimensional (2D) transition‐metal dichalcogenide (TMD) monolayers of versatile material library are spotlighted for numerous unexplored research fields. While monolayer TMDs exhibit an efficient excitonic emission, the weak light absorption arising from their low dimensionality limits potential applications. To enhance light–matter interactions TMDs, while various plasmonic hybridization methods have been intensively studied, controlling nanostructures via self‐assembly...