Development of β-Ga2O3 for next generation radiation detectors

Ge Yang; Ibrahim Hany

doi:10.1117/12.2568286

20 August 2020 Development of β-Ga₂O₃ for next generation radiation detectors

Ge Yang, Ibrahim Hany

Proceedings Volume 11494, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXII; 114940I (2020) https://doi.org/10.1117/12.2568286
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

In this work, we investigated x-ray radiation detection capability of β-Ga₂O₃ doped with Fe for minimizing leakage current through Fe n-conductivity compensation. (010) EFG grown Fe-doped β-Ga2O3 was tested as a low-noise X-ray detector with Ti/Au electrodes vertical structure. Its performance at low, high and no applied voltages was examined. The fabricated detector showed high X-ray detection performance manifested in its signal’s short fall and rise time (< 0.3 sec) in all operation modes, and the same temporal response was exhibited by a tested Au/Ni/β-Ga₂O₃/Ti/Au device. The detector’s signal is also characterized by excellent linear relation with X-ray tube power and current and high signal to noise ratio (SNR) optimized at -5 V (> 103). Moreover, the X-ray induced current signal exhibits high stability. Sub-band UV photocurrent signal showed a significantly slower response compared to X-ray induced conductivity signal.

Conference Presentation

Citation Download Citation

Ge Yang and Ibrahim Hany "Development of β-Ga₂O₃ for next generation radiation detectors", Proc. SPIE 11494, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXII, 114940I (20 August 2020); https://doi.org/10.1117/12.2568286

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available