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Goktas, Nebile Isik
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Publications (3/3 displayed)
- 2023Selective Area Growth of GaAs Nanowires and Microplatelet Arrays on Silicon by Hydride Vapor-Phase Epitaxycitations
- 2021Low temperature micro-photoluminescence spectroscopy of microstructures with InAsP/InP strained quantum wellscitations
- 2020Optical and structural analysis of ultra-long GaAs nanowires after nitrogen-plasma passivationcitations
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article
Optical and structural analysis of ultra-long GaAs nanowires after nitrogen-plasma passivation
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.