Electron-hole interaction and high-field transport of photoexcited electrons in GaAs

M. A. Osman, D. K. Ferry

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We use a theoretical ensemble Monte Carlo method to study the response of carriers photoexcited by a 1.55-eV laser pulse to applied electric fields (less than 5 kV/cm) for excited carrier densities between 1017 cm-3 and 1018 cm- 3. It is found that the electron-hole interaction reduces the fraction of electrons that transfer to the upper valleys and reduces the velocity of the electrons. These effects are more significant at low electric fields and higher excitation levels. The energy of the holes rises initially due to the energy transfer from the hot electrons through the electron-hole interaction. This is also reflected in a higher velocity for the holes during the first picosecond.

Original languageEnglish (US)
Pages (from-to)5330-5336
Number of pages7
JournalJournal of Applied Physics
Volume61
Issue number12
DOIs
StatePublished - 1987

Fingerprint

electrons
interactions
electric fields
hot electrons
valleys
Monte Carlo method
electron transfer
energy transfer
pulses
excitation
lasers
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Electron-hole interaction and high-field transport of photoexcited electrons in GaAs. / Osman, M. A.; Ferry, D. K.

In: Journal of Applied Physics, Vol. 61, No. 12, 1987, p. 5330-5336.

Research output: Contribution to journalArticle

Osman, M. A. ; Ferry, D. K. / Electron-hole interaction and high-field transport of photoexcited electrons in GaAs. In: Journal of Applied Physics. 1987 ; Vol. 61, No. 12. pp. 5330-5336.
@article{127245294c494400b277199dd9e2d637,
title = "Electron-hole interaction and high-field transport of photoexcited electrons in GaAs",
abstract = "We use a theoretical ensemble Monte Carlo method to study the response of carriers photoexcited by a 1.55-eV laser pulse to applied electric fields (less than 5 kV/cm) for excited carrier densities between 1017 cm-3 and 1018 cm- 3. It is found that the electron-hole interaction reduces the fraction of electrons that transfer to the upper valleys and reduces the velocity of the electrons. These effects are more significant at low electric fields and higher excitation levels. The energy of the holes rises initially due to the energy transfer from the hot electrons through the electron-hole interaction. This is also reflected in a higher velocity for the holes during the first picosecond.",
author = "Osman, {M. A.} and Ferry, {D. K.}",
year = "1987",
doi = "10.1063/1.338269",
language = "English (US)",
volume = "61",
pages = "5330--5336",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "12",

}

TY - JOUR

T1 - Electron-hole interaction and high-field transport of photoexcited electrons in GaAs

AU - Osman, M. A.

AU - Ferry, D. K.

PY - 1987

Y1 - 1987

N2 - We use a theoretical ensemble Monte Carlo method to study the response of carriers photoexcited by a 1.55-eV laser pulse to applied electric fields (less than 5 kV/cm) for excited carrier densities between 1017 cm-3 and 1018 cm- 3. It is found that the electron-hole interaction reduces the fraction of electrons that transfer to the upper valleys and reduces the velocity of the electrons. These effects are more significant at low electric fields and higher excitation levels. The energy of the holes rises initially due to the energy transfer from the hot electrons through the electron-hole interaction. This is also reflected in a higher velocity for the holes during the first picosecond.

AB - We use a theoretical ensemble Monte Carlo method to study the response of carriers photoexcited by a 1.55-eV laser pulse to applied electric fields (less than 5 kV/cm) for excited carrier densities between 1017 cm-3 and 1018 cm- 3. It is found that the electron-hole interaction reduces the fraction of electrons that transfer to the upper valleys and reduces the velocity of the electrons. These effects are more significant at low electric fields and higher excitation levels. The energy of the holes rises initially due to the energy transfer from the hot electrons through the electron-hole interaction. This is also reflected in a higher velocity for the holes during the first picosecond.

UR - http://www.scopus.com/inward/record.url?scp=0005384370&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0005384370&partnerID=8YFLogxK

U2 - 10.1063/1.338269

DO - 10.1063/1.338269

M3 - Article

VL - 61

SP - 5330

EP - 5336

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 12

ER -