A5020760319- Gold and Silver Nanoparticles Synthesis and Applications
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- Molecular Junctions and Nanostructures
- Graphene research and applications
- Quantum Dots Synthesis And Properties
- Advanced biosensing and bioanalysis techniques
- Copper-based nanomaterials and applications
- 2D Materials and Applications
- MXene and MAX Phase Materials
- Nanofabrication and Lithography Techniques
- Gas Sensing Nanomaterials and Sensors
- Organic Electronics and Photovoltaics
- Supercapacitor Materials and Fabrication
- Semiconductor materials and devices
- Advanced battery technologies research
- Plasmonic and Surface Plasmon Research
- Catalytic Processes in Materials Science
- Advancements in Battery Materials
- Electrocatalysts for Energy Conversion
- Nanocluster Synthesis and Applications
- Electrochemical Analysis and Applications
- Advanced Memory and Neural Computing
Nanjing Tech University
2015-2025
Xi'an University of Technology
2003-2024
Nanjing University
2021-2024
State Power Investment Corporation (China)
2024
Collaborative Innovation Center of Advanced Microstructures
2024
University of Jinan
2024
China Telecom
2019-2023
China Telecom (China)
2019-2023
California State University, Northridge
2023
Sinopec (China)
2017-2022
A new phototransistor based on the mechanically exfoliated single-layer MoS2 nanosheet is fabricated, and its light-induced electric properties are investigated in detail. Photocurrent generated from solely determined by illuminated optical power at a constant drain or gate voltage. The switching behavior of photocurrent generation annihilation can be completely finished within ca. 50 ms, it shows good stability. Especially, exhibits better photoresponsivity as compared with graphene-based...
Properly piled up: Single-layer 2D semiconducting nanomaterials of MoS2, WS2, TiS2, TaS2, ZrS2, and graphene were fabricated through an electrochemical lithiation process (see picture). The production single-layer MoS2 was achieved in 92 % yield. A MoS2-based thin-film transistor fabricated, which used for sensing NO at a detection limit 190 ppt.
Single- and multilayer MoS2 films are deposited onto Si/SiO2 using the mechanical exfoliation technique. The were then used for fabrication of field-effect transistors (FETs). These FET devices can be as gas sensors to detect nitrous oxide (NO). Although single-layer device shows a rapid response after exposure NO, current was found unstable. two-, three-, four-layer show both stable sensitive responses NO down concentration 0.8 ppm. Two-dimensional nanomaterials have received much attention...
Chemical vapor deposition is used to prepare novel 3D graphene networks, with ethanol as the carbon source. These networks are templates for construction of graphene/metal oxide composite-based supercapacitor electrodes. As a proof concept, NiO deposited on networks. The product exhibits high specific capacitance about 816 F g−1 at scan rate 5 mV s−1 and good cycling performance.
Abstract Single‐ and few‐layer transition‐metal dichalcogenide nanosheets, such as WSe 2 , TaS TaSe are prepared by mechanical exfoliation. A Raman microscope is employed to characterize the single‐layer (1L) quinary‐layer (5L) nanosheets single crystals with a laser excitation power ranging from 20 μW 5.1 mW. Typical first‐order together some second‐order combinational modes observed. new peak at around 308 cm −1 observed in except for 1L which might arise interlayer interactions. Red...
Intercalation and exfoliation of lithium: Few-layer-thick inorganic nanosheets (BN, NbSe2, WSe2, Sb2Se3, Bi2Te3) have been prepared from their layered bulk precursors by using a controllable electrochemical lithium intercalation process (see picture). The conditions, such as cut-off voltage discharge current, systematically studied optimized to produce high-quality BN NbSe2 nanosheets.
Abstract A facile method for exfoliation and dispersion of molybdenum disulfide (MoS 2 ) with the aid polyvinylpyrrolidone (PVP) is proposed. The resultant PVP‐coated MoS nanosheets, i.e., ‐PVP nanocomposites, are well dispersed in low‐boiling ethanol solvent, facilitating their thin film preparation device fabrication by solution processing technique. As a proof concept, flexible memory diode configuration reduced graphene oxide (rGO)/MoS ‐PVP/Al exhibited typical bistable electrical...
Ordentlich gestapelt: 2D-halbleitende Nanomaterialien aus einzelnen MoS2-, WS2-, TiS2-, TaS2-, ZrS2- und Graphenschichten wurden durch elektrochemische Lithiierung hergestellt (siehe Bild). Eine Ausbeute von 92 % wurde bei der Produktion einzelner MoS2-Schichten erreicht. Aus den ein Dünnschichttransistor hergestellt, zum Nachweis NO bis zu einer Detektionsgrenze 190 ppt verwendet wurde. Detailed facts of importance to specialist readers are published as "Supporting Information". Such...
The physical and electronic properties of ultrathin two-dimensional (2D) layered nanomaterials are highly related to their thickness. Therefore, the rapid accurate identification single- few- multi-layer nanosheets is essential fundamental study practical applications. Here, a universal optical method has been developed for simple, reliable quindecuple-layer (1L-15L) 2D nanosheets, including graphene, MoS2, WSe2 TaS2, on Si substrates coated with 90 nm or 300 SiO2. contrast differences...
A simple approach is developed to identify the layer number of 2D MoS2 sheets. By using an optical imaging method combined with image analysis software, a high-contrast sheets can be extracted from red (R) channel color microscopy image. The value intensity difference in grayscale R between (1–3 layers) and SiO2 substrate used sheet.
The flexible strain sensor is of significant importance in wearable electronics, since it can help monitor the physical signals from human body. Among various sensors, foam-shaped ones have received widespread attention owing to their light weight and gas permeability. However, working range these sensors still not large enough, sensitivity needs be further improved. In this work, we develop a high-performance composed Ti3C2Tx MXene, multiwalled carbon nanotubes (MWCNTs), thermoplastic...
We shine light on the covalent modification of graphite and graphene substrates using diazonium chemistry under ambient conditions. report nature chemical these graphitic substrates, relation between molecular structure film morphology, impact properties as revealed by local microscopy spectroscopy techniques electrochemistry. By careful selection reagents optimizing reaction conditions, a high density covalently grafted molecules is obtained, result that demonstrated in an unprecedented way...
We report a method for fabrication of an efficient surface enhanced Raman scattering (SERS) substrate by combination metallic nanostructures and graphene, which shows dramatic enhancement adsorption aromatic molecules. As example, the fabricated Ag or Au nanoparticle (NP)-decorated reduced graphene oxide (rGO) on Si is used as SERS to detect adsorbed molecules with low detection limit at nM level. Systematic studies effects NP size morphology are presented. This might be useful future...
Organometal halide perovskites show promising features for cost-effective application in photovoltaics. The material instability remains a major obstacle to broad because of the poorly understood degradation pathways. Here, we apply simultaneous luminescence and electron microscopy on first time, allowing us monitor situ morphology evolution optical properties upon perovskite degradation. Interestingly, morphology, photoluminescence (PL), cathodoluminescence samples evolve differently driven...
Many techniques have been employed for fabrication of flexible and transparent SERS substrates, which widely used in real applications fundamental studies.
Aqueous zinc-ion batteries (ZIBs) have been considered as prospective alternatives for lithium-ion batteries, which are able to serve power sources next-generation wearable and flexible devices, owing the merits of abundant zinc resources high safety aqueous electrolyte. However, lack suitable cathode materials with flexibility ZIBs hinders their further application. Herein, a novel material [i.e., MnO2 nanosheet-assembled hollow polyhedron anchored on carbon cloth (MnO2 /CC)] was prepared...
The reaction efficiency of reactants near plasmonic nanostructures can be enhanced significantly because effects. Herein, we propose that the catalytic activity molecular catalysts may also dramatically. Based on this proposal, develop a highly efficient and stable photocatalytic system for hydrogen evolution (HER) by compositing catalyst cobalt porphyrin together with gold nanoparticles, around which effects localized electromagnetic field, local heating, hot carrier excitation exist. After...
Bioinspired bionic eyes should be self-driving, repairable and conformal to arbitrary geometries. Such eye would enable wide-field detection efficient visual signal processing without requiring external energy, along with retinal transplantation by replacing dysfunctional photoreceptors healthy ones for vision restoration. A variety of artificial have been constructed hemispherical silicon, perovskite heterostructure photoreceptors, but creating zero-powered retinomorphic system...
A large-area, continuous, few-layer reduced graphene oxide (rGO) thin film has been fabricated on a Si/SiO(2) wafer using the Langmuir-Blodgett (LB) method followed by thermal reduction. After photochemical reduction of Pt nanoparticles (PtNPs) rGO, obtained PtNPs/rGO composite is employed as conductive channel in solution-gated field effect transistor (FET), which then used for real-time detection hybridization single-stranded DNA (ssDNA) with high sensitivity (2.4 nM). Such simple, but...
Triboelectric nanogenerator (TENG) has been proven effective in converting biomechanical energy into electrical energy, which is expected to be a new supply device for wearable electronics and can utilized as self-powered sensor. In this work, we have developed flexible, eco-friendly, multifunctional fish gelatin based triboelectric (FG-TENG) composed of (FG) film poly(tetrafluoroethylene)/poly(dimethylsiloxane) (PTFE/PDMS) composite film. The open-circuit voltage (Voc), short-circuit...
Live-cell surface-enhanced Raman spectroscopy (SERS) endoscopy is developed by using plasmonic nanowire waveguides as endoscopic probes. It demonstrated that the probe insertion does not stress cell. Opposed to conventional SERS endoscopy, with excitation at hotspot within cell, remote method yields low-background spectra from specific cell compartments minimal associated photodamage. As a service our authors and readers, this journal provides supporting information supplied authors. Such...
MXene is an emerging class of 2D materials exfoliated from ternary carbide and nitride ceramics. The exfoliation process, which acid etching approach, functionalizes the surface with -OH, -O -F groups. These functional groups offer significant opportunities for tuning colloidal properties nanoblocks; importantly, this tunability points way towards a facile route assembling these nanoblocks into 3D architectures that are in demand many applications. This route, presented first time here, uses...