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Low temperature and radiation stability of flexible IGZO TFTs and their suitability for space applications

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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 Munzenrieder
In 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

1930-8876

Publisher

Institute of Electrical and Electronics Engineers

Event name

ESSDERC: 48th European Solid-State Device Research Conference

Event location

Dresden, Germany

Event type

conference

Event date

3-6 September 2018

ISBN

9781538654026

Department 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

2018-05-23

First Open Access (FOA) Date

2018-07-24

First Compliant Deposit (FCD) Date

2018-05-22

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