A5069423222- 2D Materials and Applications
- Graphene research and applications
- MXene and MAX Phase Materials
- Acoustic Wave Resonator Technologies
- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- Photonic and Optical Devices
- Electrocatalysts for Energy Conversion
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Advanced MEMS and NEMS Technologies
- Topological Materials and Phenomena
- Advancements in Battery Materials
- Quantum Dots Synthesis And Properties
- Supercapacitor Materials and Fabrication
- Energetic Materials and Combustion
- Thermal and Kinetic Analysis
- Mechanical and Optical Resonators
- Chalcogenide Semiconductor Thin Films
- Quantum and electron transport phenomena
- Fuel Cells and Related Materials
- Radio Frequency Integrated Circuit Design
- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Advanced battery technologies research
Agency for Science, Technology and Research
2022-2025
China National Institute of Standardization
2025
Qingdao University of Technology
2024-2025
Chengdu Technological University
2024-2025
Quantum Technologies (Sweden)
2025
Institute of Materials Research and Engineering
2022-2024
East China Jiaotong University
2011-2023
National University of Singapore
2003-2022
University of Electronic Science and Technology of China
2010-2022
Inner Mongolia University
2022
As a new member of the MXene group, 2D Mo 2 C has attracted considerable interest due to its potential application as electrodes for energy storage and catalysis. The large‐area synthesis film is needed such applications. Here, one‐step direct C‐on‐graphene by molten copper‐catalyzed chemical vapor deposition (CVD) reported. High‐quality uniform in centimeter range can be grown on graphene using Mo–Cu alloy catalyst. Within vertical heterostructure, acts diffusion barrier phase‐segregated...
Two-dimensional (2D) materials such as graphene, hexagonal boron nitrides (hBN), and transition metal dichalcogenides (TMDs, e.g., MoS2) have attracted considerable attention in the past few years because of their novel properties versatile potential applications. These 2D layers can be integrated into a monolayer (lateral heterostructure) or multilayer stack (vertical heterostructure). The resulting artificial structures provide access to new applications beyond component atomic crystals...
Abstract Among van der Waals layered ferromagnets, monolayer vanadium diselenide (VSe 2 ) stands out due to its robust ferromagnetism. However, the exfoliation of VSe is challenging, not least because flake extremely unstable in air. Using an electrochemical approach with organic cations as intercalants, 1T‐VSe flakes are successfully obtained from bulk crystal at high yield. Thiol molecules further introduced onto surface passivate exfoliated flakes, which improves air stability for...
We report the fast growth of high-quality millimeter-size monolayer MoSe2 crystals on molten glass using an ambient pressure CVD system. found that isotropic surface suppresses nucleation events and greatly improves large crystalline domains. Triangular with sizes reaching ∼2.5 mm, a room-temperature carrier mobility up to ∼95 cm2/(V·s), can be synthesized in 5 min. The method also used synthesize MoS2 crystals. Our results demonstrate "liquid-state" is highly promising substrate for...
Uniform porous silicon hollow nano-spheres are prepared without any sacrificial templates through a magnesio-thermic reduction of mesoporous silica nanospheres and surface modified by the following in situ chemical polymerization polypyrrole. The structure polypyrrole coating contribute significantly to excellent stability high electrochemical performance nanocomposite.
Via edge engineering, a facile two-step method is demonstrated that produces solid edge-on junctions between TiO2 and few-layered MoS2 in large scale. MoS2/TiO2 heterostructures result high conductive interfaces optimized electron transport pathways facilitate the electron–hole pair separation, leading to an efficient solar water splitting. As service our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed may be re-organized...
In this work, we have demonstrated the synthesis of high-quality monolayered α-In2Se3 using physical vapor deposition method under atmospheric pressure. The quality In2Se3 atomic layers has been confirmed by complementary characterization technologies such as Raman/photoluminescence spectroscopies and force microscope. atomically resolved images obtained annular dark-field scanning transmission electron field-effect transistors fabricated layered exhibit p-type semiconducting behaviors with...
Large-area and high-quality 2D transition metal tellurides are synthesized by the chemical vapor deposition method. The as-grown WTe2 maintains two different stacking sequences in bilayer, where atomic structure of boundary is revealed scanning transmission electron microscopy. low-temperature transport measurements reveal a novel semimetal-to-insulator layers an enhanced superconductivity few-layer MoTe2 .
Atom-thin transition metal dichalcogenides (TMDs) have emerged as fascinating materials and key structures for electrocatalysis. So far, their edges, dopant heteroatoms defects been intensively explored active sites the hydrogen evolution reaction (HER) to split water. However, grain boundaries (GBs), a type of in TMDs, overlooked due low density large structural variations. Here, we demonstrate synthesis wafer-size atom-thin TMD films with an ultra-high-density GBs, up ~1012 cm-2. We...
Atomically thin molybdenum disulfide (MoS2), a direct-band-gap semiconductor, is promising for applications in electronics and optoelectronics, but the scalable synthesis of highly crystalline film remains challenging. Here we report successful epitaxial growth continuous, uniform, monolayer MoS2 on hexagonal boron nitride (h-BN) by molecular beam epitaxy. Atomic force microscopy electron studies reveal that grown h-BN primarily consists two types nucleation grains (0° aligned 60°...
Ultrathin ferroelectrics hold great promise for modern miniaturized sensors, memories, and optoelectronic devices. However, in most ferroelectric materials, polarization is destabilized ultrathin films by the intrinsic depolarization field. Here we report robust in-plane ferroelectricity few-layer tin sulfide (SnS) 2D crystals that coupled anisotropically to lattice strain. Specifically, of SnS manifests as nanoripples along armchair direction due a converse piezoelectric effect. Most...
Molecularly soft organic-inorganic hybrid perovskites are susceptible to dynamic instabilities of the lattice called octahedral tilt, which directly impacts their carrier transport and exciton-phonon coupling. Although structural phase transitions associated with tilt has been extensively studied in 3D halide perovskites, its impact 2D is not well understood. Here, we used scanning tunneling microscopy (STM) visualize surface freshly exfoliated Ruddlesden-Popper (RPPs) across homologous...
A common challenge for electrochemical ammonia synthesis in an aqueous phase is the consumption of Faradaic charge by competing hydrogen evolution reaction (HER), which reduces efficiency desired conversion, i.e., nitrate reduction (NO3RR) to ammonium. This problem particularly severe when a single-phase catalyst operated at high current limits, thus cocatalyst system that works synergistically acquisition and deoxygenation needed promote NO3RR over HER. Herein, we select well-known HER Mo2C...
Atomically layered 2D crystals such as transitional metal dichalcogenides (TMDs) provide an enchanting landscape for optoelectronic applications due to their unique atomic structures. They have been most intensively studied with 2H phase easy fabrication and manipulation. 1T material could possess better electrocatalytic photocatalytic properties, while they are difficult fabricate. Herein, the first time, atomically tin diselenides (SnSe 2 , III‐IV compound) successfully exfoliated by...
Deuterium labeling is of great value in organic synthesis and the pharmaceutical industry. However, state-of-the-art C-H/C-D exchange using noble metal catalysts or strong bases/acids suffers from poor functional group tolerances, selectivity lack scope for generating molecular complexity. Herein, we demonstrate deuteration halides heavy water as reagent porous CdSe nanosheets catalyst. The mechanism involves generation highly active carbon deuterium radicals via photoinduced electron...
Organic–inorganic metal halide perovskites have recently demonstrated outstanding efficiencies in photovoltaics as well highly promising performances for a wide range of optoelectronic applications such lasing, light emission, optical detectors, and even radiation detection. Key to the realization functional perovskite micro/nanosystems on ubiquitous silicon optoelectronics platform is through sophisticated lithography. Despite rapid progress made direct lithographic patterning films form...
Compared with 2D S‐based and Se‐based transition metal dichalcogenides (TMDs), Te‐based TMDs display much better electrical conductivities, which will be beneficial to enhance the capacitances in supercapacitors. However, date, reports about applications of supercapacitors are quite rare. Herein, first supercapacitor example TMD is reported: type‐II Weyl semimetal 1Td WTe 2 . It demonstrated that single crystals can exfoliated into nanosheets 2–7 layers by liquid‐phase exfoliation, assembled...
Recently, anisotropic 2D materials, such as black phosphorus and rhenium disulfides (ReS2 ), have attracted a lot attention because of their unique applications on electronics optoelectronics. In this work, the direct growth high-quality ReS2 atomic layers nanoribbons has been demonstrated by using chemical vapor deposition (CVD) method. A possible mechanism is proposed according to controlled experiments. The CVD ReS2-based filed-effect transistors (FETs) show n-type semiconducting behavior...
High-quality organic and inorganic van der Waals (vdW) solids are realized using methylammonium lead halide (CH3NH3PbI3) as the part (organic perovskite) 2D monolayers counterparts. By stacking on various monolayers, vdW exhibit dramatically different light emissions. Futhermore, organic/h-BN solid arrays patterned for red-light emission. As a service to our authors readers, this journal provides supporting information supplied by authors. Such materials peer reviewed may be re-organized...