Plasmonically-powered hot carrier induced modulation of light emission in a two-dimensional GaAs semiconductor quantum well

Eric Ashalley, Zygmunt Gryczynski, Zhiming Wang, Gregory Salamo, Arup Neogi

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A hot-electron-enabled route to controlling light with dissipative loss compensation in semiconductor quantum light emitters has been realized for tunable quantum optoelectronic devices via a two-species plasmon system. The dual species nano-plasmonic system is achieved by combining UV-plasmonic gallium metal nanoparticles (GaNPs) with visible-plasmonic gold metal nanoparticles (AuNPs) on a near-infrared two-dimensional GaAs/AlGaAs quantum well emitter. It has been demonstrated that while hot carrier-powered charge-transfer processes can result in semiconductor doping and increased optical absorption, photo-generated carrier density in the quantum well can also be modulated by off-resonant plasmonic interaction without thermal dissipation. Merging these essential emitter-friendly optical characteristics in the two-species plasmon system, we effectively modulate the frequency of the emitted light. The wavelength of the emitted light is tuned by the plasmonically powered hot electron process induced by the AuNPs with a 10-fold emission enhancement induced by the GaNPs. The additional plasmonic element provides functionality to achieving an active plasmonic light emitter that is otherwise far from reach with conventional single plasmonic material-based semiconductors.

Original languageEnglish
Pages (from-to)3827-3836
Number of pages10
JournalNanoscale
Volume11
Issue number9
DOIs
StatePublished - 7 Mar 2019

Fingerprint

Hot carriers
Light emission
Semiconductor quantum wells
Modulation
Metal nanoparticles
Gallium
Hot electrons
Semiconductor doping
Semiconductor materials
Merging
Gold
Optoelectronic devices
Light absorption
Carrier concentration
Charge transfer
gallium arsenide
Infrared radiation
Wavelength

Cite this

Ashalley, Eric ; Gryczynski, Zygmunt ; Wang, Zhiming ; Salamo, Gregory ; Neogi, Arup. / Plasmonically-powered hot carrier induced modulation of light emission in a two-dimensional GaAs semiconductor quantum well. In: Nanoscale. 2019 ; Vol. 11, No. 9. pp. 3827-3836.
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abstract = "A hot-electron-enabled route to controlling light with dissipative loss compensation in semiconductor quantum light emitters has been realized for tunable quantum optoelectronic devices via a two-species plasmon system. The dual species nano-plasmonic system is achieved by combining UV-plasmonic gallium metal nanoparticles (GaNPs) with visible-plasmonic gold metal nanoparticles (AuNPs) on a near-infrared two-dimensional GaAs/AlGaAs quantum well emitter. It has been demonstrated that while hot carrier-powered charge-transfer processes can result in semiconductor doping and increased optical absorption, photo-generated carrier density in the quantum well can also be modulated by off-resonant plasmonic interaction without thermal dissipation. Merging these essential emitter-friendly optical characteristics in the two-species plasmon system, we effectively modulate the frequency of the emitted light. The wavelength of the emitted light is tuned by the plasmonically powered hot electron process induced by the AuNPs with a 10-fold emission enhancement induced by the GaNPs. The additional plasmonic element provides functionality to achieving an active plasmonic light emitter that is otherwise far from reach with conventional single plasmonic material-based semiconductors.",
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Plasmonically-powered hot carrier induced modulation of light emission in a two-dimensional GaAs semiconductor quantum well. / Ashalley, Eric; Gryczynski, Zygmunt; Wang, Zhiming; Salamo, Gregory; Neogi, Arup.

In: Nanoscale, Vol. 11, No. 9, 07.03.2019, p. 3827-3836.

Research output: Contribution to journalArticleResearchpeer-review

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