Performances and calibrations of new disruptive UVC β-Ga2O3 sensors for new space applications

Luc Damé; Halima Ghorbel; Mustapha Meftah; Xavier Arrateig; Pierre Gilbert; Pierre Maso; David Bolsée; Nuno Pereira; David Rogers; Philippe Bove; Vinod Sandana; Ferechteh Teherani

doi:10.1117/12.2610749

5 March 2022 Performances and calibrations of new disruptive UVC β-Ga₂O₃ sensors for new space applications

Luc Damé, Halima Ghorbel, Mustapha Meftah, Xavier Arrateig, Pierre Gilbert, Pierre Maso, David Bolsée, Nuno Pereira, David Rogers, Philippe Bove, Vinod Sandana, Ferechteh Teherani

Author Affiliations +

Proceedings Volume PC12002, Oxide-based Materials and Devices XIII; PC120020F (2022) https://doi.org/10.1117/12.2610749
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

We present measurement protocols of performances, test and calibrations of new compact solid-state photodetectors based on β-Ga2O3 oxides, and optimized for the UVC. They present reduced dark currents, permitting room temperature operation suppressing need for a cooling system (mass and power savings) and avoiding cold surfaces that traps environmental contamination. Detectors' response peak around 215-220 nm with a bandpass of 30 nm, allowing to observe the UVC wavelength band responsible of ozone creation in the stratosphere (Herzberg continuum, 200-242 nm) and to achieve solar-blindness for wavelengths above 250 nm. Other key assets of β-Ga2O3 detectors are their radiation hard properties (longer lifetime), and possible sensitivity (several hundreds mA/W at -5 V) that allows operation at lower voltages (reduced power), a key asset for Space applications. These detectors, evaluated, tested and calibrated, will be integrated on the INSPIRE-7 nanosatellite to be launched in 2023.

Conference Presentation

Citation Download Citation

Luc Damé, Halima Ghorbel, Mustapha Meftah, Xavier Arrateig, Pierre Gilbert, Pierre Maso, David Bolsée, Nuno Pereira, David Rogers, Philippe Bove, Vinod Sandana, and Ferechteh Teherani "Performances and calibrations of new disruptive UVC β-Ga₂O₃ sensors for new space applications", Proc. SPIE PC12002, Oxide-based Materials and Devices XIII, PC120020F (5 March 2022); https://doi.org/10.1117/12.2610749

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