Recent advances in energy-saving chemiresistive gas sensors: A review

Sanjit Manohar Majhi, Ali Mirzaei, Hyoun Woo Kim, Sang Sub Kim, Tae Whan Kim

Research output: Contribution to journalReview articlepeer-review


With the tremendous advances in technology, gas-sensing devices are being popularly used in many distinct areas, including indoor environments, industries, aviation, and detectors for various toxic domestic gases and vapors. Even though the most popular type of gas sensor, namely, resistive-based gas sensors, have many advantages over other types of gas sensors, their high working temperatures lead to high energy consumption, thereby limiting their practical applications, especially in mobile and portable devices. As possible ways to deal with the high-power consumption of resistance-based sensors, different strategies such as self-heating, MEMS technology, and room-temperature operation using especial morphologies, have been introduced in recent years. In this review, we discuss different types of energy-saving chemisresitive gas sensors including self-heated gas sensors, MEMS based gas sensors, room temperature operated flexible/wearable sensor and their application in the fields of environmental monitoring. At the end, the review will be concluded by providing a summary, challenges, recent trends, and future perspectives.

Original languageEnglish
Article number105369
JournalNano Energy
StatePublished - 2021 Jan


  • Energy saving
  • Flexible gas sensors
  • Low-power consumption
  • MEMS-Based gas sensors
  • Room-temperature sensing

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