A5080098820- 2D Materials and Applications
- Perovskite Materials and Applications
- Graphene research and applications
- Advancements in Battery Materials
- MXene and MAX Phase Materials
- Supercapacitor Materials and Fabrication
- Advanced Battery Materials and Technologies
- Solid-state spectroscopy and crystallography
- Advanced Photocatalysis Techniques
- Transition Metal Oxide Nanomaterials
- Advanced battery technologies research
- Gas Sensing Nanomaterials and Sensors
- Chalcogenide Semiconductor Thin Films
- ZnO doping and properties
- Advanced Memory and Neural Computing
- Organic and Molecular Conductors Research
- Advanced Thermoelectric Materials and Devices
- Quantum Dots Synthesis And Properties
- Plasmonic and Surface Plasmon Research
- Electrocatalysts for Energy Conversion
- Ferroelectric and Negative Capacitance Devices
- Cryptographic Implementations and Security
- Photonic and Optical Devices
- Chaos-based Image/Signal Encryption
- Nanocluster Synthesis and Applications
Nanjing Tech University
2017-2024
Changchun Institute of Optics, Fine Mechanics and Physics
2022-2024
Chinese Academy of Sciences
2022-2024
Instituto de Óptica "Daza de Valdés"
2024
State Key Laboratory of Luminescence and Application
2024
University of Chinese Academy of Sciences
2023-2024
Northwest University
2017-2024
Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University
2024
Wenzhou Medical University
2024
Ministry of Education of the People's Republic of China
2017-2024
Honeycomb-like MoS2 nanoarchitectures anchored into 3D graphene foam are successfully fabricated as a high-performance positive electrode for enhanced Li-ion storage. The unique interpenetrating honeycomb-like structure is the key to high performance. High reversible capacity, superior high-rate capability, and excellent cycling stability demonstrated.
The development of portable and wearable electronics has promoted increasing demand for high-performance power sources with high energy/power density, low cost, lightweight, as well ultrathin flexible features. Here, a new type Ni/Fe cell is designed fabricated by employing Ni(OH)2 nanosheets porous Fe2O3 nanorods grown on lightweight graphene foam (GF)/carbon nanotubes (CNTs) hybrid films electrodes. assembled f-Ni/Fe cells are able to deliver densities (100.7 Wh/kg at 287 W/kg 70.9 1.4...
Due to the intriguing optical and electronic properties, 2D materials have attracted a lot of interest for optoelectronic applications. Identifying new promising will be rewarding toward development next generation electronics. Here, palladium diselenide (PdSe 2 ), noble‐transition metal dichalcogenide (TMDC), is introduced as high mobility material into fast growing community. Field‐effect transistors (FETs) based on ultrathin PdSe show intrinsic ambipolar characteristic. The polarity FET...
Abstract Potassium‐intercalated graphite intercalation compounds (K‐GICs) are of particular physical and chemical interest due to their versatile structures fascinating properties. Fundamental insights into the K + storage mechanism, complex kinetics/thermodynamics that control reactions structural rearrangements allow manipulating K‐GICs with desired functionalities. Here operando studies including in situ Raman mapping X‐ray diffraction (XRD) characterizations, combination...
Although new spintronic devices based on the giant spin-orbit splitting of single-layer MoS(2) have been proposed, such has not studied effectively in experiments. This Letter reports valence band for first time, probed by triply resonant Raman scattering process. We found that upon 325 nm laser irradiation, second order overtone and combination modes are dramatically enhanced. Such enhancement arises from electron-two-phonon triple resonance via deformation potential Fröhlich interaction....
Though the SERS effect based on pristine MoS2 is hardly observed, however, plasma treated nanoflakes can be used as an ideal substrate for surface enhanced Raman scattering. It proved that structural disorder induced generation of local dipoles and adsorption oxygen nanosheets are two basic important driven forces enhancement signals adsorbed R6G molecules. As a service to our authors readers, this journal provides supporting information supplied by authors. Such materials peer reviewed may...
The stacking configuration in few-layer two-dimensional (2D) materials results different structural symmetries and layer-to-layer interactions, hence it provides a very useful parameter for tuning their electronic properties. For example, ABA-stacking trilayer graphene remains semimetallic similar to that of monolayer, while ABC-stacking is predicted be tunable band gap semiconductor under an external electric field. Such dependence resulting from many-body interactions has recently been the...
Nanostructured tin‐based anodes are promising for both lithium and sodium ion batteries (LIBs SIBs), but their performances limited by the rate capability long‐term cycling stability. Here, ultrathin SnO nanoflakes arrays in situ grown on highly conductive graphene foam/carbon nanotubes substrate, forming a unique, flexible, binder‐free 3D hybrid structure electrode. This electrode exhibits an excellent Na + storage capacity of 580 mAh g −1 at 0.1 A , to best our knowledge, has...
Resolving the structure-property relationships of two-dimensional (2D) organic-inorganic hybrid perovskites is essential for development photovoltaic and photoelectronic devices. Here, pressure (0-10 GPa) was applied to 2D perovskite flakes mechanically exfoliated from butylammonium lead halide single crystals, (C4H9NH3)2PbI4, which we observed a series changes strong excitonic emissions in photoluminescence spectra. By correlating with situ high-pressure X-ray diffraction results, examine...
Due to the easy intralayer gliding and weak interlayer van der Waals interaction in transition metal dichalcogenides (TMDs), ion (particularly Li+) intercalation has been used modify tune their atomic structures obtain desired optical, electronic chemical properties for future optoelectronics energy storage applications. A good understanding of transformative during is critical. In this paper, we investigate structural transformation dynamics 2H-MoS2 using electrochemical Li+ 2H-MoS2. The...
High pressure (HP) can drive the direct sintering of nanoparticle assemblies for Ag/Au, CdSe/PbS nanocrystals (NCs). Instead conventional nanocrystals, this study experimentally observes first time high-pressure-induced comminution and recrystallization organic-inorganic hybrid perovskite into highly luminescent nanoplates with a shorter carrier lifetime. Such novel response is attributed to unique structural nature perovskites under high pressure: during drastic cubic-orthorhombic...
Hydrogen bonding exists in all hybrid organic–inorganic lead halide perovskites MAPbX3 (X = Cl, Br, or I). It has a strong influence on the structure, stability, and electronic optical properties of this perovskite family. The hydrogen-bonding state between H atoms methylammonium (MA) cation ions is resolved by combining ab initio calculations with temperature-dependent Raman scattering powder X-ray diffraction measurements MAPbBr3 perovskites. When compounds are cooled, H-bonding NH3 end MA...
Abstract Spinel cobaltites are widely presented as promising pseudocapacitive materials, however, a fundamental understanding of their structure–property relationship at an atomic level remains vague. Herein, geometrical‐site‐dependent charge storage capability is investigated by substituting Co with inactive Zn and redox‐active Mn. Experimental theoretical analyses reveal that cations in octahedral sites contribute to enhanced capacitance, intrinsically determined the covalency competition...
The creation of crystal phase heterostructures transition metal chalcogenides, e.g., the 1T/2H heterostructures, has led to formation metal/semiconductor junctions with low potential barriers. Very differently, post-transition chalcogenides are semiconductors regardless their phases. Herein, we report, based on experimental and simulation results, that alloying between 1T-SnS2 1T-WS2 induces a charge redistribution in Sn W realize metallic Sn0.5W0.5S2 nanosheets. These nanosheets epitaxially...
Abstract Although nanostructured/nanoporous carbon and silicon‐based materials are a potential replacement for graphite as cost‐effective anodes lithium ion batteries (LIBs), their extremely low packing density leads to considerably reduced volumetric capacities. Herein, highly compact anode material constructed from sub‐2 nm nanosized graphitic domains is reported that exhibits excellent capacity density. By introducing coordination agent in the synthesis precursors, an unusually high...