Hydrogenated Amorphous Silicon Charge-Selective Contact Devices on a Polyimide Flexible Substrate for Dosimetry and Beam Flux Measurements

Hydrogenated Amorphous Silicon Charge-Selective Contact Devices on a Polyimide Flexible Substrate for Dosimetry and Beam Flux Measurements

Hydrogenated amorphous silicon (a-Si:H) devices on flexible substrates are currently being studied for application in dosimetry and beam flux measurements. The necessity of in vivo dosimetry requires thin devices with maximal transparency and flexibility. For this reason, a thin (<10 µm) a-Si:H d...

Full description

Saved in:
Bibliographic Details
Main Authors: Mauro Menichelli, Saba Aziz, Aishah Bashiri, Marco Bizzarri, Clarissa Buti, Lucio Calcagnile, Daniela Calvo, Mirco Caprai, Domenico Caputo, Anna Paola Caricato, Roberto Catalano, Massimo Cazzanelli, Roberto Cirio, Giuseppe Antonio Pablo Cirrone, Federico Cittadini, Tommaso Croci, Giacomo Cuttone, Giampiero de Cesare, Paolo De Remigis, Sylvain Dunand, Michele Fabi, Luca Frontini, Catia Grimani, Mariacristina Guarrera, Hamza Hasnaoui, Maria Ionica, Keida Kanxheri, Matthew Large, Francesca Lenta, Valentino Liberali, Nicola Lovecchio, Maurizio Martino, Giuseppe Maruccio, Giovanni Mazza, Anna Grazia Monteduro, Arianna Morozzi, Augusto Nascetti, Stefania Pallotta, Andrea Papi, Daniele Passeri, Maddalena Pedio, Marco Petasecca, Giada Petringa, Francesca Peverini, Pisana Placidi, Matteo Polo, Alberto Quaranta, Gianluca Quarta, Silvia Rizzato, Federico Sabbatini, Leonello Servoli, Alberto Stabile, Cinzia Talamonti, Jonathan Emanuel Thomet, Luca Tosti, Monica Setia Vasquez Mora, Mattia Villani, Richard James Wheadon, Nicolas Wyrsch, Nicola Zema
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Sensors
Subjects:
dosimeters
hydrogenated amorphous silicon detectors
radiation hardness
charge-selective contacts devices
flexible sensors
Online Access:https://www.mdpi.com/1424-8220/25/4/1263
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Hydrogenated amorphous silicon (a-Si:H) devices on flexible substrates are currently being studied for application in dosimetry and beam flux measurements. The necessity of in vivo dosimetry requires thin devices with maximal transparency and flexibility. For this reason, a thin (<10 µm) a-Si:H device deposited on a thin polyimide sheet is a very valid option for this application. Furthermore, a-Si:H is a material that has an intrinsically high radiation hardness. In order to develop these devices, the HASPIDE (Hydrogenated Amorphous Silicon Pixel Detectors) collaboration has implemented two different device configurations: n-i-p type diodes and charge-selective contact devices.Charge-selective contact-based devices have been studied for solar cell applications and, recently, the above-mentioned collaboration has tested these devices for X-ray dose measurements. In this paper, the HASPIDE collaboration has studied the X-ray and proton response of charge-selective contact devices deposited on Polyimide. The linearity of the photocurrent response to X-ray versus dose-rate has been assessed at various bias voltages. The sensitivity to protons has also been studied at various bias voltages and the wide range linearity has been tested for fluxes in the range from 8.3 × 10<sup>7</sup> to 2.49 × 10<sup>10</sup> p/(cm<sup>2</sup> s).
ISSN:1424-8220

Similar Items