A5100428414- Graphene research and applications
- Nonlinear Optical Materials Research
- Fullerene Chemistry and Applications
- Synthesis and Properties of Aromatic Compounds
- Advanced materials and composites
- High-Temperature Coating Behaviors
- Nonlinear Optical Materials Studies
- Metal and Thin Film Mechanics
- Boron and Carbon Nanomaterials Research
- 2D Materials and Applications
- Advanced ceramic materials synthesis
- Molecular Junctions and Nanostructures
- Carbon Nanotubes in Composites
- Porphyrin and Phthalocyanine Chemistry
- Environmental remediation with nanomaterials
- Advanced Chemical Physics Studies
- Advancements in Battery Materials
- Diamond and Carbon-based Materials Research
- Synthesis and characterization of novel inorganic/organometallic compounds
- Perovskite Materials and Applications
- Cloud Data Security Solutions
- Nanomaterials for catalytic reactions
- Photochemistry and Electron Transfer Studies
- Surface Chemistry and Catalysis
- Magnetism in coordination complexes
Chongqing University
2015-2024
State Key Laboratory of Digital Medical Engineering
2023
Hebei University of Chinese Medicine
2023
Southeast University
2023
Northwestern Polytechnical University
2023
Shandong Academy of Sciences
2021-2022
Qilu University of Technology
2021-2022
Nanjing University of Aeronautics and Astronautics
2022
Wuxi Institute of Technology
2016-2020
Harbin Institute of Technology
2007-2016
Abstract Transient devices represent an emerging type of electronics whose main characteristic is the constituent materials that could fully or partially dissolute disintegrate by chemical physical processes after completing mission, and are considered as new research directions for implantable devices. However, on transient still in its infancy there many challenges to overcome, especially development energy relatively slow. Here, implantable, biodegradable zinc ion battery (TZIB) assembles...
We performed a co-condensation reaction between aromatic aldehyde and diamine monomers on highly oriented pyrolytic graphite surface either at solid/liquid interface room temperature or in low vacuum with moderate heating. With this simple methodology, we have obtained surface-confined 2D covalent organic frameworks (COFs) few defects almost entire coverage. The single crystalline domain can extend to more than 1 μm(2). By varying the backbone length of diamines pore size COFs is tunable...
The integration of 2D covalent organic frameworks (COFs) with atomic thickness graphene will lead to intriguing two-dimensional materials. A surface-confined covalently bonded Schiff base network was prepared on single-layer grown copper foil and the dynamic reaction process investigated scanning tunneling microscopy. DFT simulations provide an understanding electronic structures interactions between surface COF graphene. Strong coupling confirmed by dispersive bands after interaction...
Three-stage strategies (ladder rule, few state model (FSM), and parallelization) were proposed to improve the computational efficiency of sum-over-states (SOS) in nonlinear optics (NLO) modeling. Ladder rule decomposes NLO coefficients nth into (n-1)th term contribution from without loss rigor theory. FSM singles out states with substantial NLO. Those are universal all (including revised simplified) SOS models. The computing cost reduces roughly C/(n(i-1)) (C is a constant i rank (order)...
This work is focused on achieving high performance multilayer InSe field-effect transistors by a systematic experiment study metal contacts. The can be achieved choosing an ideal contact and adopting proper thickness of nanosheets. By (33 nm), the FETs was improved following sequence Al, Ti, Cr In extracted mobility values are 4.7 cm(2) V(-1) s(-1), 27.6 74 s(-1) 162 for In, respectively. on/off ratios 10(7)-10(8). device electronic properties interface morphology deposition metals/InSe...
We present a simple and efficient approach to evaluate the formation energy and, in particular, ionization (IE) of charged defects two-dimensional (2D) systems using supercell approximation. So far, first-principles results for such can scatter widely due divergence Coulomb with vacuum dimension, denoted here as L_{z}. Numerous attempts have been made past fix problem under various approximations. Here, we show that be resolved without any assumption, converged IE obtained by an...
Development of highly active and robust earth-abundant electrocatalysts for the hydrogen evolution reaction (HER) is great significance broad utilization alkaline electrolyzers.
Abstract Achieving uniform lithium (Li) deposition is the key to tackle uncontrollable dendrite growth, which hinders application of Li metal anodes. In this study, molten thermally injected into a 3D framework by growing lithiophilic CoO nanosheets on Cu foam (CF). The layer grown CF surface physically adsorbs Li, makes it possible spontaneously wet framework. morphology does not change during injection process and formed multi‐level structure with CF, difficult be achieved previously, as...
The Staudinger reactions of substituted phosphanes and azides have been investigated by using density functional theory. Four different initial reaction mechanisms found. All systems studied go through a cis-transition state rather than trans-transition or one-step transition state. pathway the phosphorus atom attacking nitrogen is always unfavorable energetically. Depending on substituents azide phosphane, mechanism with lowest barrier can be classified into three categories: (1) like...
In this review, we summarize the recent developments of 2D boron based crystals. The theoretical design, possible experimental realization strategies and their potential technical applications are presented discussed.
Group IV monochalcogenides exhibit spontaneous polarization and ferroelectricity, which are important in photovoltaic materials. Since strain engineering plays an role the present work, effect of equibiaxial on band structure shift currents monolayer two-dimensional (2D) GeS SnS has systematically been investigated using first-principles calculations. The conduction bands those materials more responsive to than valence bands. Increased compressive leads a drastic reduction gap finally...
We report the in situ microscopy observation of an unnatural phase Ni, a highly strained hexagonal close-packed (hcp) form which we believe is stabilized by heteroepitaxial growth on (001) face MgO. find that nanosized hcp nickel islands transform into normal face-centered cubic structure when size exceeds critical value (about 2.5 nm thick with lateral ∼5nm). The structural transition proceeds via martensitic change stacking sequence planes. formation Ni nanostructures unusually large...
Within density functional theory with the general gradient approximation for exchange and correlation, bimetallic clusters AuPt Au6Pt have been studied their structure reactivity. The bond strength of lies between those Au2 Pt2, it is closer to that Au2. Pt atom reactive center in both AuPt+ according electronic analysis. more stable than AuPt. prefers states low multiplicity. most conformation a singlet has quasi-planar hexagonal frame lying at center. doping Au cluster enhances chemical...
Density functional theory based calculations have been performed to investigate decomposition of HCOOH on a Pd(7) cluster in vacuum and solution. The adsorption occurs layer-by-layer quasi-planar conformation with 4 atoms top 3 below. Possible reaction pathways for the adsorbed solution are located compared terms enengies barriers. Formic acid prefers decompose through dehydrogenation rather than dehydrate under significant effect solvent. toxic species, CO generated Pt surface, could not...