Improvement in Chemiresistive Response of SnO2Thin Film by RuO2-Nanosheets-Functionalization and Its Application to Highly Sensitive Ethanol Sensor

Wonkeun Park, Yunsung Kang, Xiaoyan Jin, Dongseok Lee, Seong Ju Hwang, Jongbaeg Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper introduces the use of ruthenium dioxide (RuO2) nanosheets as a catalyst in gas sensors, significantly enhancing the chemiresistive response of tin dioxide (SnO2) thin films for ethanol detection. The RuO2-functionalized device, integrated with a microheater for low-power operation, demonstrates a 243% improved response to 10 ppm ethanol compared to that of pristine SnO2. The sensor is operable at 250 with 18 mW power and fabricated with bulk-micromachining, thus these could be suitable for portable applications. Additionally, the sensor's performance at exposure to ethanol at various concentrations down to 500 ppb is characterized.

Original languageEnglish
Title of host publicationIEEE 37th International Conference on Micro Electro Mechanical Systems, MEMS 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages863-866
Number of pages4
ISBN (Electronic)9798350357929
DOIs
Publication statusPublished - 2024
Event37th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2024 - Austin, United States
Duration: 2024 Jan 212024 Jan 25

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999

Conference

Conference37th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2024
Country/TerritoryUnited States
CityAustin
Period24/1/2124/1/25

Bibliographical note

Publisher Copyright:
© 2024 IEEE.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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