A hydrogenated amorphous silicon detector for Space Weather applications

Grimani, Catia; Fabi, Michele; Sabbatini, Federico; Villani, Mattia; Antognini, Luca; Bashiri, Aishah; Calcagnile, Lucio; Caricato, Anna Paola; Catalano, Roberto; Chilà, Deborah; Cirrone, Giuseppe Antonio Pablo; Croci, Tommaso; Cuttone, Giacomo; Dunand, Sylvain; Frontini, Luca; Ionica, Maria; Kanxheri, Keida; Large, Matthew; Liberali, Valentino; Martino, Maurizio; Maruccio, Giuseppe; Mazza, Giovanni; Menichelli, Mauro; Monteduro, Anna Grazia; Morozzi, Arianna; Moscatelli, Francesco; Pallotta, Stefania; Passeri, Daniele; Pedio, Maddalena; Petasecca, Marco; Petringa, Giada; Peverini, Francesca; Piccolo, Lorenzo; Placidi, Pisana; Quarta, Gianluca; Rizzato, Silvia; Stabile, Alberto; Talamonti, Cinzia; Thomet, Jonathan; Tosti, Luca; Wheadon, Richard James; Wyrsch, Nicolas; Zema, Nicola; Servoli, Leonello

doi:10.1007/s10509-023-04235-w

Cited by 6 publications

(3 citation statements)

References 69 publications

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“…Then, for compatibility with fabrication methods involving thermal treatments, we go to the stable inorganic thin-film solar cell type [26,27]. Lastly, when considering low-cost and abundant nontoxic materials, the hydrogenated amorphous silicon (aSiH) thin-film solar cell is a good selection for our design [28][29][30]. The performance of solar cells based on aSiH is improved when thermally treated [31,32].…”

Section: Introductionmentioning

confidence: 99%

Optical Sensing Using Hybrid Multilayer Grating Metasurfaces with Customized Spectral Response

Elshorbagy,

Cuadrado,

Alda

2024

Sensors

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Customized metasurfaces allow for controlling optical responses in photonic and optoelectronic devices over a broad band. For sensing applications, the spectral response of an optical device can be narrowed to a few nanometers, which enhances its capabilities to detect environmental changes that shift the spectral transmission or reflection. These nanophotonic elements are key for the new generation of plasmonic optical sensors with custom responses and custom modes of operation. In our design, the metallic top electrode of a hydrogenated amorphous silicon thin-film solar cell is combined with a metasurface fabricated as a hybrid dielectric multilayer grating. This arrangement generates a plasmonic resonance on top of the active layer of the cell, which enhances the optoelectronic response of the system over a very narrow spectral band. Then, the solar cell becomes a sensor with a response that is highly dependent on the optical properties of the medium on top of it. The maximum sensitivity and figure of merit (FOM) are SB = 36,707 (mA/W)/RIU and ≈167 RIU−1, respectively, for the 560 nm wavelength using TE polarization. The optical response and the high sensing performance of this device make it suitable for detecting very tiny changes in gas media. This is of great importance for monitoring air quality and thecomposition of gases in closed atmospheres.

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Section: Introductionmentioning

confidence: 99%

Optical Sensing Using Hybrid Multilayer Grating Metasurfaces with Customized Spectral Response

Elshorbagy,

Cuadrado,

Alda

2024

Sensors

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“…The HASPIDE project [4] focuses on developing a-Si:H sensors deposited on PI. The envisioned applications include beam monitoring for high-energy physics and TRansmission Detectors (TRD) for electron and proton clinical accelerators, X-ray beam dose profiling for medical and industrial purposes, detectors for solar flare events in space missions [5], and neutron detection for industrial, nuclear safeguard, and homeland security applications [4].…”

Section: Introductionmentioning

confidence: 99%

HASPIDE: a project for the development of hydrogenated amorphous silicon radiation sensors on a flexible substrate

Tosti,

Antognini,

Aziz

et al. 2024

J. Inst.

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Hydrogenated amorphous silicon (a-Si:H) is a material with a very good radiation hardness and with the possibility of deposition on flexible substrates like Polyimide (PI). Exploiting these properties, the HASPIDE (Hydrogenated Amorphous Silicon PIxels DEtectors) project has the goal of developing a-Si:H detectors on flexible substrates for beam dosimetry and profile monitoring, neutron detection and space experiments. The detectors for this experiment will be developed in two different structures: the n-i-p diode structure, which has been used up to now for the construction of the planar a-Si:H detectors, and the recently developed charge selective contact structure. In the latter the doped layers (n or p) are replaced with charge selective materials namely electron-selective conductive metal-oxides (TiO2 or Al:ZnO) and hole-selective conductive metal oxides (MoO x ). In this paper preliminary data on the capabilities of these detectors to measure X-ray and electron fluxes will be presented. In particular, the linearity, the sensitivity, the stability and dark current in various conditions will be discussed.

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“…Despite the detailed characteristics of this instrument are not yet available, a statistical uncertainty of 1% on hourly binned integral data is expected, similarly to LPF. While the availability of proton and helium differential fluxes up to 400 MeV/n allows us to extrapolate quite nicely the SEP flux above these energies (see for a detailed discussion Grimani et al, 2023), this is not the case for GCRs during short-term variations.…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo simulations and machine learningmodels for cosmic-ray short-term variations andtest-mass charging on board LISA

Villani,

Sabbatini,

Cesarini

et al. 2024

Preprint

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Energetic particles of galactic and solar origin charge the metal free-falling testmasses (TMs) of the interferometers for gravitational wave detection in space.The deposited charge couples with stray electric fields thus generating spuri-ous Coulomb forces between the TMs and the electrode housing that limit theinterferometer sensitivity. Long-term and short-term galactic cosmic-ray varia-tions are strongly energy-dependent and the TM charging varies with particleenergy distribution. We propose two different approaches involving Monte Carlosimulations and machine learning models to study the recurrent modulationof energy spectra of galactic particles ascribable to the passage of high-speedsolar wind streams. The transit of interplanetary counterparts of coronal massejections modifies the effects of high-speed streams. This work aims at betterunderstanding the energy-dependence of galactic cosmic-ray short-term varia-tions for the Laser Interferometer Space Antenna (LISA), the first interferometerfor gravitational wave detection in space, starting from lessons learned with LISAPathfinder. The outcomes of our models will be used to assess the TM chargingduring the time LISA will remain in orbit around the Sun.

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A hydrogenated amorphous silicon detector for Space Weather applications

Cited by 6 publications

References 69 publications

Optical Sensing Using Hybrid Multilayer Grating Metasurfaces with Customized Spectral Response

Optical Sensing Using Hybrid Multilayer Grating Metasurfaces with Customized Spectral Response

HASPIDE: a project for the development of hydrogenated amorphous silicon radiation sensors on a flexible substrate

Monte Carlo simulations and machine learningmodels for cosmic-ray short-term variations andtest-mass charging on board LISA

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