Highly Sensitive Perovskite based Refractometric Sensor for Nitrogen Dioxide Gas Detection

Rana, KK and Mishra, A and Srinivas, T (2023) Highly Sensitive Perovskite based Refractometric Sensor for Nitrogen Dioxide Gas Detection. In: 2nd International Conference for Advancement in Technology, ICONAT 2023, 24 - 26 January 2023, Goa.

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Abstract

In this work, we have theoretically investigated an ultrafast refractometric-based sensor for Nitrogen Dioxide (NO2) gas detection. In designing the sensor, we have used perovskite as a novel functional material. It exhibits a change in its conductivity along with its refractive index change upon absorption and release of NO2 gas detection. Putting a thin layer of perovskite into operation on top of the silicon micro ring, minimum detection limit can be reached within a specific concentration range, eventually leading to very high sensitivity. If we look into the detection ability in terms of conductivity or refractive index change, perovskite seems to be the future of gas sensor. Its stability can be controlled by doping or substituting selective material (Cesium in this case).

Item Type:	Conference Paper
Publication:	2023 International Conference for Advancement in Technology, ICONAT 2023
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright of this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Chemical sensors; Evanescent fields; Functional materials; Gas detectors; MEMS; Nitrogen oxides; Refractive index; Refractometers; Evanescent field ratio; Gas detection; NO2 gas; Novel functional materials; Refractive index changes; Refractive index sensor; Refractometric sensors; Ring resonator; Thin layers; Ultra-fast; Perovskite
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	09 Jun 2023 11:19
Last Modified:	09 Jun 2023 11:19
URI:	https://eprints.iisc.ac.in/id/eprint/81863

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