Trion-electron scattering in GaAs/AlAs quantum wells

A. Manassen; R. Harel; E. Cohen; Arza Ron; E. Linder; L. N. Pfeiffer

doi:10.1016/0039-6028(96)00441-4

Trion-electron scattering in GaAs/AlAs quantum wells

A. Manassen, R. Harel, E. Cohen, Arza Ron, E. Linder, L. N. Pfeiffer

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We report on the photoluminescence (PL) lineshape of negatively charged excitons (trions) in mixed type I-type II GaAs/AlAs quantum wells. A two-dimensional electron gas (2DEG) is photoexcited in the wide wells of this structure and for a low density (n_e <10¹⁰ cm^-2) the spectrum is dominated by a free trion band whose broadening depends on n_e. We calculated the elastic and inelastic trion-electron scattering rate for various 2DEG densities and show that this mechanism explains well the observed PL lineshape.

Original language	English (US)
Pages (from-to)	443-446
Number of pages	4
Journal	Surface Science
Volume	361-362
DOIs	https://doi.org/10.1016/0039-6028(96)00441-4
State	Published - Jul 20 1996
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/0039-6028(96)00441-4

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title = "Trion-electron scattering in GaAs/AlAs quantum wells",

abstract = "We report on the photoluminescence (PL) lineshape of negatively charged excitons (trions) in mixed type I-type II GaAs/AlAs quantum wells. A two-dimensional electron gas (2DEG) is photoexcited in the wide wells of this structure and for a low density (ne <1010 cm-2) the spectrum is dominated by a free trion band whose broadening depends on ne. We calculated the elastic and inelastic trion-electron scattering rate for various 2DEG densities and show that this mechanism explains well the observed PL lineshape.",

author = "A. Manassen and R. Harel and E. Cohen and Arza Ron and E. Linder and Pfeiffer, {L. N.}",

year = "1996",

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T1 - Trion-electron scattering in GaAs/AlAs quantum wells

AU - Manassen, A.

AU - Harel, R.

AU - Cohen, E.

AU - Ron, Arza

AU - Linder, E.

AU - Pfeiffer, L. N.

PY - 1996/7/20

Y1 - 1996/7/20

N2 - We report on the photoluminescence (PL) lineshape of negatively charged excitons (trions) in mixed type I-type II GaAs/AlAs quantum wells. A two-dimensional electron gas (2DEG) is photoexcited in the wide wells of this structure and for a low density (ne <1010 cm-2) the spectrum is dominated by a free trion band whose broadening depends on ne. We calculated the elastic and inelastic trion-electron scattering rate for various 2DEG densities and show that this mechanism explains well the observed PL lineshape.

AB - We report on the photoluminescence (PL) lineshape of negatively charged excitons (trions) in mixed type I-type II GaAs/AlAs quantum wells. A two-dimensional electron gas (2DEG) is photoexcited in the wide wells of this structure and for a low density (ne <1010 cm-2) the spectrum is dominated by a free trion band whose broadening depends on ne. We calculated the elastic and inelastic trion-electron scattering rate for various 2DEG densities and show that this mechanism explains well the observed PL lineshape.

UR - http://www.scopus.com/inward/record.url?scp=0030190286&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030190286&partnerID=8YFLogxK

U2 - 10.1016/0039-6028(96)00441-4

DO - 10.1016/0039-6028(96)00441-4

M3 - Article

AN - SCOPUS:0030190286

SN - 0039-6028

VL - 361-362

SP - 443

EP - 446

JO - Surface Science

JF - Surface Science

ER -

Trion-electron scattering in GaAs/AlAs quantum wells

Abstract

All Science Journal Classification (ASJC) codes

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