Engineering the Surface Plasmonic Coupling with Atomic-scale Antennas in Two-dimensional Transition Metal Dichalcogenides

Project: Research

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Surface plasmon is playing important roles in nanophotonics areas. While there have been great interests on the engineering/applications of the local surface plasma resonance and surface plasma polariton for the optical field enhancement/transmitting, currently we are still lacking of knowledge about the mechanisms of the surface plasmon coupling at metal/semiconductor interfaces, particularly when the atomic defects are involved. There are same problems for the emergent two-dimensional materials field, thus the exact mechanisms of the generation/injection of hot electrons and plasmonic coupling effects at the heterojunction/interfaces are under hot debate at present. Here, we plan to employ some local atomic defects in 2D transition metal dichalcogenides, including point defects, dopant atoms, grain boundaries, dislocations and wrinkles, as the atomic-scale antennas to enhance the local surface plasmonic fields and increase the quantum efficiencies for generation/transmit of photons in 2D TMDs or increase the electron transmit probabilities. 


Project number7005259
Effective start/end date1/09/19 → …