Hot electron photoemission in metal–semiconductor structures aided by resonance tunneling

Pair tunneling resonance in the single-electron transport regime.

We predict a new electron pair tunneling (PT) resonance in nonlinear transport through quantum dots with positive charging energies exceeding the broadening due to thermal and quantum fluctuations. The PT resonance shows up in the single-electron transport (SET) regime as a peak in the derivative of the nonlinear conductance, d(2)I/dV(2), when the electrochemical potential of one electrode matc...

Modeling Electron Transport in InGaAs-Based Resonant-Tunneling Hot-Electron Transistors

This paper describes the modeling of the resonant-tunneling hot-electron transistor (RHET). In the analysis of the resonanttunneling harrier, we solved the Schrodinger and the Poisson equations self-consistently. We simulated the electron transport in the base and the collector barrier region using the Monte Carlo method, taking account of the space charge in the collector barrier. Our model in...

Quantum noise in ac-driven resonant-tunneling double-barrier structures: Photon-assisted tunneling versus electron antibunching

We study the quantum noise of the electronic current in a double-barrier system with a single resonant level. In the framework of the Landauer formalism, we treat the double barrier as a quantum coherent scattering region that can exchange photons with a coupled electric field, e.g., a laser beam or a periodic ac bias voltage. As a consequence of the manifold parameters that are involved in thi...

Simulation of hot-electron oxide tunneling current based on a non-Maxwellian electron energy distribution function

For the simulation of gate oxide tunneling currents in sub-quarter-micron devices, the correct modeling of the electron energy distribution function is crucial. Our approach is based on a recently presented transport model which accounts for six moments of the Boltzmann transport equation. A corresponding analytical model for the electron energy distribution function shows good agreement with M...

Solar energy conversion via hot electron internal photoemission in metallic nanostructures: Efficiency estimates