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April 26, 2026Micro and Nano Systems LettersOpen Access

Influence of electrode-sensing material contact area on MWCNT-based gas sensor performance

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Authors

MLMin Seok LeeJKJunsu KimJKJunsu Kim

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Overview

This randomized trial investigates the influence of contact area on gas sensor performance, suggesting optimal sensor design parameters.

Key Points

  • This research aims to explore how the contact area between electrode and sensing material affects the performance of MWCNT-based ammonia gas sensors.
  • Various sensors were fabricated with differing contact areas.
  • Resistance changes were measured under exposure to ammonia gas.
  • A systematic analysis of response characteristics was conducted.
  • The response characteristics increased sharply up to a contact area of 10 mm².
  • The most efficient contact area for sensor performance was approximately 14 mm².
  • A percolation threshold effect was observed, impacting resistance changes significantly at varying contact areas.

Cite This Study

Lee et al. (2026) studied this question.

synapsesocial.com/papers/69edac074a46254e215b3d6dhttps://doi.org/10.1186/s40486-026-00258-4
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