My Research interests includes two aspects. The current major research is the quantum transport  in nano systems; and the topological, electronic, optic and magnetic properties of  2D materials.

   I also have the research experience in the molecular aggregations and self-assembling in solutions, such as the morphology and phase transition of micelles, vesicles and colloids in water.

(1)  Quantum Transport

      I employ some theoretical methods such as the non-equilibrium Green's function (NEGF) theory to study the quantum transport of electrons in nano and mesoscopic systems.

      I also use some model systems to study the spin polarization and the electron-phonon or electron-photon interactions in these nano structures.

      For the 2D materials, we also study the topological phase transitions due to the external fields and the spin-orbital coupling among them.

      I can use the following methods or models

    Transfer matrix method
Boundary matching method
Non-equilibrium Green’s function (NEGF) theory
Time-dependent quantum transport theory
The first principle calculations (with the softwares: DFTB+, Vasp and Material Studio)
Hubbard model
Floquet theory

(2)  Molecular Aggregation

      I use some optical detection methods, such as the non-linear optical scattering and spectroscopy to study the molecular aggregation process, including the phase transition, surface reconstruction and the dynamic assembling.
      I also use the molecular dynamics and some stochastic theory to further investigate the detailed aggregation dynamics and explain the experimental results.

      The following methods or software are the tools I use in the molecular aggregation.

    Hyper-Rayleigh Scattering method
    Dynamic optical scattering method
    UV-Vis absorption spectroscopy
    Steady and dynamic fluorescence spectroscopy
    Molecular Dynamics (Lammps, Gromacs)
    Monte Carlo simulation