Abstract
We investigate the effects of hydrogen radical treatment on piezoresistance coefficients of germanium under uniaxial stress up to ±500 μ strain over the temperature range −30 °C to 25 °C. Hydrogen radicals are produced by hydrogen gas (99.99%, 2.7 kPa) on a hot tungsten catalyst (1800 °C). The gauge factor and majority carrier on non-dope germanium dramatically changed from n- to p-type after the hydrogen radical treatment. The results suggest that the piezoresistance coefficients of germanium are seriously affected by vacancy-related levels around the midgap, which behave as donors or acceptors depending on the Fermi level and are passivated by the hydrogen radicals.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.