Observation of suppressed Auger mechanism in type-I quantum well structures with delocalized electron-hole wavefunctions

Iman Hassani Nia; Vala Fathipour; Hooman Mohseni

doi:10.1063/1.4928731

AIP Advances (Aug 2015)

Observation of suppressed Auger mechanism in type-I quantum well structures with delocalized electron-hole wavefunctions

Iman Hassani Nia,
Vala Fathipour,
Hooman Mohseni

Affiliations

Iman Hassani Nia: Bio-Inspired Sensors and Optoelectronics Laboratory (BISOL), Department of Electrical Engineering, Northwestern University, Evanston, Illinois 60208, USA
Vala Fathipour: Bio-Inspired Sensors and Optoelectronics Laboratory (BISOL), Department of Electrical Engineering, Northwestern University, Evanston, Illinois 60208, USA
Hooman Mohseni: Bio-Inspired Sensors and Optoelectronics Laboratory (BISOL), Department of Electrical Engineering, Northwestern University, Evanston, Illinois 60208, USA

DOI: https://doi.org/10.1063/1.4928731
Journal volume & issue: Vol. 5, no. 8
pp. 087138 – 087138-5

Abstract

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We report the first observation of non-threshold Auger mechanism for a quantum well structure with Type-I band alignment. Excitation-dependent photoluminescence measurements were used to extract the Auger recombination coefficients from 77 K up to room temperature. The results verify the role of interface mediated momentum exchange as well as suppression of Auger recombination for delocalized electron-hole wavefunctions.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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