Low Temperature and Radiation Stability of Flexible.pdf (727.69 kB)
Low temperature and radiation stability of flexible IGZO TFTs and their suitability for space applications
conference contribution
posted on 2023-06-26, 09:03 authored by Julio Costa, Arash Pour Yazdan Panah Kermani, Julianna Panidi, Thomas Anthopoulos, Maciej O Liedke, Christof Schneider, Andreas Wagner, Niko MunzenriederIn this paper, Low Earth Orbit radiation and temperature conditions are mimicked to investigate the suitability of flexible Indium-Gallium-Zinc-Oxide transistors for lightweight space-wearables. Such wearable devices could be incorporated into spacesuits as unobtrusive sensors such as radiation detectors or physiological monitors. Due to the harsh environment to which these space-wearables would be exposed, they have to be able to withstand high radiation doses and low temperatures. For this reason, the impacts of high energetic electron irradiation with fluences up to 1012 e-/cm2 and low operating temperatures down to 78 K, are investigated. This simulates 278 h in a Low Earth Orbit. The threshold voltage and mobility of transistors that were exposed to e- irradiation are found to shift by +0.09 ± 0.05V and -0.6 ± 0.5cm2 V-1 s-1. Subsequent low temperature exposure resulted in additional shifts of +0.38 V and -5.95 cm2 V-1 s-1 for the same parameters. These values are larger than the ones obtained from non-irradiated reference samples. If this is considered during the systems’ design, these devices can be used to unobtrusively integrate sensor systems into space-suits.
History
Publication status
- Published
File Version
- Accepted version
Journal
2018 48th European Solid-State Device Research Conference (ESSDERC)ISSN
1930-8876Publisher
Institute of Electrical and Electronics EngineersExternal DOI
Event name
ESSDERC: 48th European Solid-State Device Research ConferenceEvent location
Dresden, GermanyEvent type
conferenceEvent date
3-6 September 2018ISBN
9781538654026Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Sensor Technology Research Centre Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-05-23First Open Access (FOA) Date
2018-07-24First Compliant Deposit (FCD) Date
2018-05-22Usage metrics
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