Structural design and temperature control enabling high sensitivity nanomaterial-based three-electrode gas sensors.

ABSTRACT: Ionization based gas sensors using nanomaterials hold significance in monitoring gases but often suffer from issues such as excessive positive ion bombardment, which reduces lifespan, current collection, and detection accuracy. This study introduces a two-dimensional plasma discharge current model based on particle mass conservation, electron energy conservation, and Poisson equations to evaluate the discharge characteristics and electric fields distribution effects on sensor performance across various morphologies and cathode nanomaterial quantities, with experimental validation. The results indicated that the diffusion aperture diameter structure adjustment in sensor electrode surface maintains a high reverse electric field E₁ around the nanotips of the cathode, accelerated ma

SUBMITTER: Waqas M 

PROVIDER: S-EPMC12215397 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature