ArticleScientific reports2017
Photo-acoustic spectroscopy revealing resonant absorption of self-assembled GaAs-based nanowires.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 34 citations in OpenAlex.
- Broadband optical spin dependent reflection in self-assembled GaAs-based nanowires asymmetrically hybridized with Au.Scientific reports · 2021Article
- Theoretical Modeling for the Thermal Stability of Solid Targets in a Positron-Driven Muon Collider.International journal of thermophysics · 2021Article
- Circular Dichroism in the Second Harmonic Field Evidenced by Asymmetric Au Coated GaAs Nanowires.Micromachines · 2020Article
- Demonstration of extrinsic chirality of photoluminescence with semiconductor-metal hybrid nanowires.Scientific reports · 2019Article
- Enhanced Near-Field Chirality in Periodic Arrays of Si Nanowires for Chiral Sensing.Molecules (Basel, Switzerland) · 2019Article
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Authors and funding
9 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
III-V semiconductors nanowires (NW) have recently attracted a significant interest for their potential application in the development of high efficiency, highly-integrated photonic devices and in particular for the possibility to integrate direct bandgap materials with silicon-based devices. Here we report the absorbance properties of GaAs-AlGaAs-GaAs core-shell-supershell NWs using photo-acoustic spectroscopy (PAS) measurements in the spectral range from 300 nm to 1100 nm wavelengths. The NWs were fabricated by self-catalyzed growth on Si substrates and their dimensions (length ~5 μm, diameter ~140-150 nm) allow for the coupling of the incident light to the guided modes in near-infrared (IR) part of the spectrum. This coupling results in resonant absorption peaks in the visible and near IR clearly evidenced by PAS. The analysis reveal broadening of the resonant absorption peaks arising from the NW size distribution and the interaction with other NWs. The results show that the PAS technique, directly providing scattering independent absorption spectra, is a very useful tool for the characterization and investigation of vertical NWs as well as for the design of NW ensembles for photonic applications, such as Si-integrated light sources, solar cells, and wavelength dependent photodetectors.
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Registered trials
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