Advanced synthesis and processing of 2D materials, topological quantum materials, and heterostructures
2D materials display many different atomic and electronic phases offering tremendous opportunities for studying novel quantum topological states, such as QSH, QAH, superconductors, and Weyl/Dirac semimetals etc. We are interested in the synthesis and assembly of 2D quantum materials and heterostructures by both top-down (exfoliation and transfer) and bottom-up (CVD and PLD) approaches. Our goal is to realize novel 2D layered quantum materials and devices by tailoring the heterogeneities including defects, confinement, and symmetry breaking through controlled synthesis and processing for the emerging quantum states (such as quantum emission, QSH, QAH, Majorana fermions).
Subject areas or capabilities:
—–Synthesis and assembly of 2D quantum materials to create vdW heterostructures which enable to explore the new quantum phenomena from the proximity effect relevant to topological qubits.
Synthesis of 2D layered quantum materials such as TMD-based topological materials by CVD, PLD and exfoliation.
Assembly of 2D quantum materials to create heterostructure with controlled stacking by the deterministic transfer system which allows transfer and stacking of individual layers in an air-free ‘glove box’.
—–Understand phase formation mechanism during synthesis and develop methods for selective growth and processing of phase-engineered 2D TMDs for 2D electronic and quantum devices.
—–Quantum device and transport.
A. Oyedele., et al. PdSe2 : pentagonal 2D layers with high Air stability for electronics, J. Am. Chem. Soc., 139, 14090 (2017).
X. Li, et al, Edge-Controlled Growth and Etching of Two-Dimensional GaSe Monolayers, J. Am. Chem. Soc., 139, 482–491 (2017).