A5018109782- 2D Materials and Applications
- Perovskite Materials and Applications
- MXene and MAX Phase Materials
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- ZnO doping and properties
- Graphene research and applications
- Advanced Battery Technologies Research
- Gold and Silver Nanoparticles Synthesis and Applications
- Molecular Junctions and Nanostructures
- Plasmonic and Surface Plasmon Research
- Catalysis for Biomass Conversion
- Quantum Dots Synthesis And Properties
- Catalysis and Hydrodesulfurization Studies
- Chalcogenide Semiconductor Thin Films
- Thermal Expansion and Ionic Conductivity
- Catalysis and Oxidation Reactions
- Biofuel production and bioconversion
- Magnetic properties of thin films
- Advanced biosensing and bioanalysis techniques
- Advanced Memory and Neural Computing
- Supercapacitor Materials and Fabrication
- Quantum and electron transport phenomena
- Advanced battery technologies research
- Ferroelectric and Negative Capacitance Devices
Pennsylvania State University
2019-2025
Shanghai University of Electric Power
2023-2024
Qingdao University of Science and Technology
2023-2024
Abstract Aqueous zinc‐ion batteries, considered one of the important candidate technologies for green and environmentally friendly large‐scale energy storage, hinge upon performance cathode materials as key factor driving their development. Vanadate oxide is a promising material due to its high theoretical capacity; furthermore, in order accelerate reaction kinetics, ion or molecular intercalation often utilized. However, non‐electrochemically active intercalants tend cause capacity...
Doping lies at the heart of modern semiconductor technologies. Therefore, for two-dimensional (2D) semiconducting transition metal dichalcogenides (TMDs), significance controlled doping is no exception. Recent studies have indicated that, by substitutionally 2D TMDs with a judicious selection dopants, their electrical, optical, magnetic, and catalytic properties can be effectively tuned, endowing them great potential various practical applications. Herein, inspired sol-gel process, we report...
Dilute magnetic semiconductors (DMS), achieved through substitutional doping of spin-polarized transition metals into semiconducting systems, enable experimental modulation spin dynamics in ways that hold great promise for novel magneto-electric or magneto-optical devices, especially two-dimensional (2D) systems such as metal dichalcogenides accentuate interactions and activate valley degrees freedom. Practical applications 2D magnetism will likely require room-temperature operation, air...
The outstanding optoelectronic and valleytronic properties of transition metal dichalcogenides (TMDs) have triggered intense research efforts by the scientific community. An alternative to induce long-range ferromagnetism (FM) in TMDs is introducing magnetic dopants form a dilute semiconductor. Enhancing these semiconductors not only represents key step toward modern TMD-based spintronics, but also enables exploration new exciting dimensionality-driven phenomena. To this end, tunable at room...
Abstract The ability to control the density and spatial distribution of substitutional dopants in semiconductors is crucial for achieving desired physicochemical properties. Substitutional doping with adjustable levels has been previously demonstrated 2D transition metal dichalcogenides (TMDs); however, dopant remains an open field. In this work, edge termination as important characteristic TMD monocrystals that affects dopants. Particularly, chemical vapor deposition (CVD)‐grown monolayer...
Sodium-ion batteries have great potential for large-scale energy storage applications. The cathode material makes an important contribution to the density of sodium-ion batteries. A sodium iron phosphate (Na3Fe2(PO4)P2O7), which is a mixed polyanionic material, has good structural stability and large theoretical capacity. However, material's poor electrical conductivity prevents adequate capacity release. Heterovalent ion-doping considered be means improving intrinsic materials. Here,...
Due to its low cost and high stability, the iron-based mixed polyanionic compound Na4Fe3(PO4)2P2O7 is widely studied for use as a sodium-ion battery cathode material. However, development limited by electrical conductivity restricted diffusion kinetics. In this work, we chose replace PO43– group with SiO44– enhance electronic kinetics, while structural substitution maintains integrity of Furthermore, at nonactive site improves electrochemical performance without reducing theoretical...
Abstract Due to their significant capacity and reliable reversibility, transition metal sulphides (TMSs) have received attention as potential anode materials for sodium‐ion batteries (SIBs). Nonetheless, a prevalent challenge with TMSs lies in volume expansion sluggish kinetics, impeding rapid enduring Na + storage. Herein, Cu 1.96 S@NC nanodisc material enriched copper vacancies is synthesised via hydrothermal annealing procedure. Density functional theory (DFT) calculations reveal that the...
Abstract 2D dilute magnetic semiconductors have been recently reported in transition metal dichalcogenides doped with spin‐polarized atoms, for example vanadium‐doped WS 2 monolayers, which exhibit room‐temperature ferromagnetic ordering. However, a broadband characterization of the electronic band structure these monolayers and its dependence on vanadium concentration is still lacking. Therefore, power‐dependent photoluminescence, resonant four‐wave mixing, differential reflectance...
Abstract Atomically thin transition metal dichalcogenide (TMD) semiconductors hold enormous potential for modern optoelectronic devices and quantum computing applications. By inducing long‐range ferromagnetism (FM) in these through the introduction of small amounts a magnetic dopant, it is possible to extend their spintronics. Here, light‐mediated, room temperature (RT) FM, V‐doped WS 2 (V‐WS ) monolayers demonstrated. The authors probe this effect using principle LC resonance, which employs...
It is critical to understand the laws of quantum mechanics in transformative technologies for computation and information science applications enable ongoing second revolution calls. Recently, spin qubits based on point defects have gained great attention, since these can be initiated, selectively controlled, read out with high precision at ambient temperature. The major challenge systems controllably generating multiqubit while properly coupling defects. To address this issue, we began by...
Abstract The capacity to manipulate magnetization in 2D dilute magnetic semiconductors (2D‐DMSs) using light, specifically magnetically doped transition metal dichalcogenide (TMD) monolayers ( M ‐doped TX 2 , where = V, Fe, and Cr; T W, Mo; X S, Se, Te), may lead innovative applications spintronics, spin‐caloritronics, valleytronics, quantum computation. This Perspective paper explores the mediation of by light under ambient conditions 2D‐TMD DMSs heterostructures. By combining magneto‐LC...
Abstract Strong spatial confinement and highly reduced dielectric screening provide monolayer transition metal dichalcogenides with strong many‐body effects, thereby possessing optically forbidden excitonic states (i.e., dark excitons) at room temperature. Herein, the interaction of surface plasmons excitons in hybrid systems consisting stacked gold nanotriangles WS 2 is explored. A narrow Fano resonance observed when system surrounded by water, narrowing spectral linewidth attributed to...
Abstract Recently, a high‐entropy strategy has attracted extensive attention and is applied to the preparation of electrode materials for energy storage batteries, aiming improve electrochemical performance. It found that adjusting conformational entropy material can significantly enhance ion electron transport efficiency, as well structural stability host material. However, there still remains lack deep understanding into strategy, specifically regarding how this approach alter intrinsic...
The field of photovoltaics is revolutionized in recent years by the development two-dimensional (2D) type-II heterostructures. These heterostructures are made up two different materials with electronic properties, which allows for capture a broader spectrum solar energy than traditional photovoltaic devices. In this study, potential vanadium (V)-doped WS2 investigated, hereafter labeled V-WS2 , combination air-stable Bi2 O2 Se use high-performance Various techniques used to confirm charge...
2D dilute magnetic semiconductors (DMS) based on transition metal dichalcogenides (TMD) offer an innovative pathway for advancing spintronic technologies, including the potential to exploit phenomena such as valley Zeeman effect. However, impact of ordering degeneracy breaking and enhancement optical transitions g-factors these materials remains open question. Here, a giant effective ranging between ≈-27 -69 bound exciton at 4 K in vanadium-doped WSe
Two-dimensional dilute magnetic semiconductors has been recently reported in semiconducting transition metal dichalcogenides by the introduction of spin-polarized atoms as dopants. This is case vanadium-doped WS$_2$ and WSe$_2$ monolayers, which exhibits a ferromagnetic ordering even above room temperature. However, broadband characterization their electronic band structure its dependence on vanadium concentration still lacking. Therefore, here we perform power-dependent photoluminescence,...
The magnetic proximity effect (MPE) has recently been explored to manipulate interfacial properties of two-dimensional (2D) transition metal dichalcogenide (TMD)/ferromagnet heterostructures for use in spintronics and valleytronics. However, a full understanding the MPE its temperature field evolution these systems is lacking. In this study, probed Pt/WS
Post-transfer annealing affects optical properties of monolayer WS 2 /Ge(100) 2D/3D heterostructures. Stronger van der Waals interactions change the electronic band structure , narrowing its gap and largely quenching photoluminescence.
Dilute magnetic semiconductors, achieved through substitutional doping of spin-polarized transition metals into semiconducting systems, enable experimental modulation spin dynamics in ways that hold great promise for novel magneto-electric or magneto-optical devices, especially two-dimensional systems such as metal dichalcogenides accentuate interactions and activate valley degrees freedom. Practical applications 2D magnetism will likely require room-temperature operation, air stability,...
Transition metal dichalcogenide (TMD) monolayers present a singular coupling in their spin and valley degrees of freedom. Moreover, by applying an external magnetic field it is possible to break the energy degeneracy between K $-$K valleys. Thus, this analogous Zeeman effect opens possibility controlling distinguishing charge carriers TMDs optical transition energies, making these materials promising for next generation spintronic photonic devices. However, free excitons pristine TMD...