Optical and structural analysis of ultra-long GaAs nanowires after nitrogen-plasma passivation - Université Clermont Auvergne Access content directly
Journal Articles Nano Express Year : 2020

Optical and structural analysis of ultra-long GaAs nanowires after nitrogen-plasma passivation

Yamina André
  • Function : Author
Guillaume Monier
Hussein Mehdi
  • Function : Author
Catherine Bougerol
Luc Bideux
Joël Leymarie
  • Function : Author
  • PersonId : 835166
Evelyne Gil
Christine Robert-Goumet

Abstract

The structural and optical properties of individual ultra-long GaAs nanowires (NWs) were studied after different nitrogen passivation process conditions. The surface morphology of the NWs after passivation was characterized by high resolution transmission electron microscopy (HRTEM) and high angle annular dark field (HAADF) imaging. Electron energy loss spectroscopy (EELS) confirmed the presence of nitrogen on the NW surface. Micro-photoluminescence (µ-PL) on single NWs indicated an increase of the luminescence intensity upon passivation. This work reveals the efficacy of a plasma passivation process on complex nanometer-scale morphologies.
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Dates and versions

hal-02997616 , version 1 (10-11-2020)

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Yamina André, Nebile Isik Goktas, Guillaume Monier, Hadi Hijazi, Hussein Mehdi, et al.. Optical and structural analysis of ultra-long GaAs nanowires after nitrogen-plasma passivation. Nano Express, 2020, 1 (2), pp.020019. ⟨10.1088/2632-959X/aba7f1⟩. ⟨hal-02997616⟩
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