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arXiv · 2112.03434

Towards real-time oxygen sensing: From nanomaterials to plasma

Vinitha Johny·KV Chinmaya·Muhammed Nihal CV·Varghese Kurian·G Mohan Rao·Moumita Ghosh·Siddharth Ghosh
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Abstract

A significantly large scope is available for the scientific and engineering developments of high-throughput ultra-high sensitive oxygen sensors. We give a perspective of oxygen sensing for two physical states of matters - solid-state nanomaterials and plasma. From single-molecule experiments to material selection, we reviewed various aspects of sensing, such as capacitance, photophysics, electron mobility, response time, and a yearly progress. Towards miniaturisation, we have highlighted the benefit of lab-on-chip-based devices and showed exemplary measurements of fast real-time oxygen sensing. From the physical-chemistry perspective, plasma holds a strong potential in the application of oxygen sensing. We investigated the current state-of-the-art of electron density, temperature, and design issues of plasma systems. We also show a numerical aspects of low-cost approach towards developing plasma-based oxygen sensor from household candle flame. In this perspective, we give an opinion about a diverse range of scientific insight together, identifies the short comings, and opens the path for new physical-chemistry device developments of oxygen sensor along with providing a guideline for innovators in oxygen sensing.

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Vinitha Johny, KV Chinmaya, Muhammed Nihal CV, Varghese Kurian, G Mohan Rao, Moumita Ghosh, Siddharth Ghosh. 2021-12-07. Towards real-time oxygen sensing: From nanomaterials to plasma. https://arxiv.org/abs/2112.03434

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