Monte Carlo study of electron heating and enhanced thermionic emission by hot phonons in heterolayers

Kim, Kiwook; Hess, Karl; Capasso, Federico
April 1988
Applied Physics Letters;4/4/1988, Vol. 52 Issue 14, p1167
Academic Journal
We present a numerical study of the effects of nonthermal phonon distributions on electron transport across heterolayers. For the microscopic analysis of both the electron and phonon dynamics, an ensemble Monte Carlo method has been used which includes a realistic band structure. It is observed that the abrupt energy gain at the heterointerface generates significant perturbations in the phonon distribution through the subsequent relaxation and heats the electron distribution because of the reabsorption of nonequilibrium phonons. The influence of a wide range of operating conditions on hot-phonon effects is also discussed.


Related Articles

  • Role of hot electron transport in scintillators: A theoretical study. Huang, Huihui; Li, Qi; Lu, Xinfu; Qian, Yiyang; Wu, Yuntao; Williams, R. T. // Physica Status Solidi - Rapid Research Letters;Oct2016, Vol. 10 Issue 10, p762 

    Despite recent intensive study on scintillators, several fundamental questions on scintillator properties are still unknown. In this work, we use ab-initio calculations to determine the energy dependent group velocity of the hot electrons from the electronic structures of several typical...

  • Monte Carlo Simulation of Electron Transport in AlGaAS. El-Ela, F. M. Abou // AIP Conference Proceedings;2005, Vol. 748 Issue 1, p86 

    This paper studies the high electric field transport in the ternary alloy AlxGa1-xAs for composition x range from 0.0 to 0.35. Our calculations are based on a Monte Carlo technique for the three-valley conduction band model. Scattering sources include polar optical phonons, intervalley phonons,...

  • Hot-phonon effects on electron transport in quantum wires. Mickevicˇius, R.; Mitin, V.; Paulavicˇius, G.; Kochelap, V.; Stroscio, M. A.; Iafrate, G. J. // Journal of Applied Physics;11/1/1996, Vol. 80 Issue 9, p5145 

    Deals with a study which investigated hot phonon effects on electron transport in rectangular gallium arsenide/aluminum arsenide quantum wires by a self-consistent Monte Carlo simulation. Model and method; Analysis of hot phonons in a single quantum wire; Summary and findings.

  • Electron transport and full-band electron-phonon interactions in graphene. Akturka, Akin; Goldsman, Neil // Journal of Applied Physics;Mar2008, Vol. 103 Issue 5, p053702 

    We developed a full-band Monte Carlo simulator to investigate electron transport in a single layer of graphite (graphene). The electron and phonon dispersion curves of graphene are first obtained by applying the tight-binding method to the two inequivalent atoms of the graphene unit cell,...

  • Full-band Monte Carlo model of electron and hole transport in strained Si including inelastic... Fischer, Bjorn; Hofmann, Karl R. // Applied Physics Letters;4/12/1999, Vol. 74 Issue 15, p2185 

    Features full-band Monte Carlo simulations of electron and hole transport in strained silicon including inelastic acoustic phonon scattering. In-plane lattice mobilities for electrons and for holes; Drift velocity and energy versus electric field characteristics given as reference for...

  • Effects of phonon confinement on electron transport in superlattices. Shigekawa, Naoteru; Mizutani, Takashi; Yokoyama, Kiyoyuki // Journal of Applied Physics;1/15/1989, Vol. 65 Issue 2, p677 

    Presents a study that evaluated the effect of phonon confinement within each layer of semiconductor superlattices on electron transport parallel to their interfaces at room temperature using Monte Carlo methods. Electron-phonon interaction in superlattices with very thin barrier layers; Values...

  • Magneto transport in crossed electric and magnetic fields in compensated bulk GaN. Syngayivska, G. I.; Korotyeyev, V. V.; Kochelap, V. A.; Varani, L. // Journal of Applied Physics;9/7/2016, Vol. 120 Issue 9, p1 

    Low-temperature high-field electron transport is studied for compensated bulk GaN subjected to crossed electric and magnetic fields. The electron kinetics, distribution function, and field dependencies of the magneto transport characteristics are analyzed by using the Monte-Carlo method. At zero...

  • Nonequilibrium Phonon Propagation in High-Purity CdTe. Sharkov, A. I.; Galkina, T. I.; Klokov, A. Yu.; Klevkov, Yu. V. // Physics of the Solid State;Jan2003, Vol. 45 Issue 1, p163 

    Propagation of nonequilibrium acoustic phonons in samples of high-purity CdTe (impurity content ∼10[SUP16] cm[SUP-3]) was studied using the heat pulse technique under pulsed photoexcitation. An analysis of nonequilibrium phonon propagation made by comparing the experimental response with...

  • Monte Carlo calculation of electron transport properties of bulk AIN. Albrecht, J.D.; Wang, R.P.; Ruden, P. P.; Farahmand, M.; Brennan, K. F. // Journal of Applied Physics;2/1/1998, Vol. 83 Issue 3, p1446 

    Presents a study which focuses on the Monte Carlo method, used to calculate electron transport properties of bulk AIN. How the electron drift velocity for large electric fields are calculated; Results of this study; Discussion on the results.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics