A5102880721- 2D Materials and Applications
- Graphene research and applications
- Advanced NMR Techniques and Applications
- Organic and Molecular Conductors Research
- Molecular spectroscopy and chirality
- Electronic and Structural Properties of Oxides
- MXene and MAX Phase Materials
- Spectroscopy and Quantum Chemical Studies
- Transition Metal Oxide Nanomaterials
- Boron and Carbon Nanomaterials Research
- Topological Materials and Phenomena
- Hydrogen embrittlement and corrosion behaviors in metals
- Photochemistry and Electron Transfer Studies
- Advanced Physical and Chemical Molecular Interactions
- ZnO doping and properties
- Magnetism in coordination complexes
- Perovskite Materials and Applications
- NMR spectroscopy and applications
- Molecular Junctions and Nanostructures
- Metal and Thin Film Mechanics
- Chemical and Physical Properties of Materials
- Advanced MRI Techniques and Applications
- Electrochemical Analysis and Applications
- Advanced Thermoelectric Materials and Devices
Michigan State University
2020-2023
Xiamen University
2020-2021
University of Wisconsin–Milwaukee
2016
Taishan University
2010
Shandong University
2010
Nuclear magnetic resonance (NMR) is one of the most powerful analytical tools and extensively applied in many fields. However, compared to other spectroscopic techniques, NMR has lower sensitivity, impeding its wider applications. Using data postprocessing techniques increase spectral signal-to-noise ratio (SNR) a relatively simple cost-effective method. In this work, deep neural network, termed as DN-Unet, devised suppress noise liquid-state spectra enhance SNR. It combines structures...
Growth spirals exhibit appealing properties due to a preferred layer stacking and lack of inversion symmetry. Here, we report spiral growth MoS2 during chemical vapor deposition on SiO2/Si epitaxial graphene/SiC substrates, their physical electronic properties. We determine the layer-dependence bandgap, ranging from 2.4 eV for monolayer constant 1.3 beyond fifth layer. further observe that predominantly initiate at step edges SiC substrate, based which propose mechanism driven by screw...
Grain boundaries (GBs) are inherent extended defects in chemical vapor deposited (CVD) transition metal dichalcogenide (TMD) films. Characterization of the atomic structure and electronic properties these GBs is crucial for understanding controlling TMDs via defect engineering. Here, we report CVD grown MoS2 on epitaxial graphene/SiC(0001). Using scanning tunneling microscopy/spectroscopy, find that mostly consist arrays dislocation cores, where presence mid-gap states shifts both conduction...
Abstract The competing and non‐equilibrium phase transitions, involving dynamic tunability of cooperative electronic magnetic states in strongly correlated materials, show great promise quantum sensing information technology. To date, the stabilization transient is still preliminary stage, particularly with respect to molecular solids. Here, a potassium‐7,7,8,8‐tetracyanoquinodimethane (K‐TCNQ) control pulsed electromagnetic excitation demonstrated. Simultaneous coherent lattice perturbation...
Polymorphic phase transitions are an important route for engineering the properties of two-dimensional materials. Heterostructure construction, on other hand, not only allows integration different functionalities device applications, but also enables exploration new physics arising from proximity coupling. Yet, implementing a design that incorporates advantages both remains underexplored. Here, based comprehensive experimental and theoretical studies WSe2/SnSe2 core-shell lateral...
Density functional calculations were performed to investigate the atomic and electronic structures of Rh-filled (n,0) boron nitride nanotubes (Rh@BNNTs) for n=6, 7, 8. Our results indicate that Rh atoms encapsulated in BNNTs self-aggregate form ultrathin nanowires, which arrangement depends on tube diameter as well content. The Rh@BNNTs can be tuned from semiconducting metallic by controlling are expected serve building blocks next generation nanoscaled devices.
Using scanning tunneling microscopy/spectroscopy (STM/STS), we investigate the evolution of electronic structures across boundaries 7,7,8,8-tetracyanoquinodimethane (TCNQ) and K-TCNQ assemblies on a weakly interacting substrate. Despite semiconducting/insulating nature TCNQ (TCNQ0) (TCNQ-1), continuum metallic-like density states extending deep (∼1.5 nm) into assembly is observed near domain boundary. We attribute formation these to abrupt change molecular valence, which perturbs...
Heterointerfaces and heterostructures offer unprecedented potential for tailoring the physical behaviors of two-dimensional materials. In this work, we investigate growth electronic properties SnSe2 films on 3 × reconstructed (111)-oriented SrTiO3 surface using scanning tunneling microscopy/spectroscopy. A distinct coverage-dependent mode is identified, which unambiguously correlated with spatial distribution films. We further demonstrate that interfacial modification a van der Waals-layered...
Electrically switchable magnetic and electronic properties are promising for quantum sensing information technology. Here, we report an electrically driven phase transition in molecular crystal, potassium-7,7,8,8-tetracyanoquinodimethan, with the magneto-electric switching over 105 cycles at room temperature. Electron spin resonance study reveals cooperative between charge degrees of freedom. In addition, mechanistic spectroscopy studies suggest charges inhomogeneous conductor-insulator...
Supramolecular Electronic Crystals The cooperative tuning of a supramolecular electronic crystal enables access to long-lived hidden conducting phase with broad temperature range from 2 360 K, through pulsed electromagnetic field. In article number 2103000, Shenqiang Ren and co-workers demonstrate dynamic in K-TCNQ, the control excitation. A dedicated charge–spin–lattice decoupling is required activate subsequently stabilize non-equilibrium phase.