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Abstract
In this study, we demonstrate a graphene-based portable gas sensor with an integrated fused silica micro chamber for direct on-chip sample injection to detect a low concentration (∼10 ppm) of acetone from a soil sample at room temperature and pressure. A chemiresistive gas sensor was first fabricated by a conformal transfer process using a commercial monolayer graphene film. Printable fused silica micro gas chamber (internal volume of 50 microliter), fabricated separately, was permanently attached with the graphene chemiresistor using an ultra-violet light source. A relative resistance change of 1% (∼20 ppm of acetone) was achieved by injection of a headspace sample for acetone calibration. This direct on-chip injection method shows an excellent potential for detecting volatile organic compounds from a soil sample without requiring complex sample extraction steps.
Original language | English |
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Title of host publication | Proceedings of the IEEE Applied Sensing Conference, APSCON 2023 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Number of pages | 3 |
ISBN (Electronic) | 9781665461634 |
ISBN (Print) | 9781665461641 |
DOIs | |
Publication status | Published - 17 Apr 2023 |
Event | IEEE Applied Sensing Conference 2023 - Bengaluru, India Duration: 23 Jan 2023 → 25 Apr 2023 |
Publication series
Name | IEEE Applied Sensing Conference (APSCON): Proceedings |
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Conference
Conference | IEEE Applied Sensing Conference 2023 |
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Abbreviated title | APSCON 2023 |
Country/Territory | India |
City | Bengaluru |
Period | 23/01/2023 → 25/04/2023 |
Keywords
- graphene chemi-resistor ,
- soil testing
- Direct injection vapor sensing
- Printable glass chamber
Fingerprint
Dive into the research topics of 'Printable fused silica based microchamber integrated with graphene chemi-resistive sensors for direct on-chip soil testing'. Together they form a unique fingerprint.Projects
- 1 Finished
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R3201ECI: EPMD: Enabling next generation integrated optoelectronics with free-form metamaterials based on graphene
Shakeel, H. (PI)
21/01/2020 → 30/11/2023
Project: Research
Student theses
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Design and fabrication of highly sensitive graphene-based sensors for environmental and health monitoring applications
Ann Jose, S. (Author), McNeill, D. (Supervisor) & Shakeel, H. (Supervisor), Jul 2024Student thesis: Doctoral Thesis › Doctor of Philosophy
File
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Printable fused silica based microchamber integrated with graphene chemi-resistive sensors for direct on-chip soil testing
Ann Jose, S., Atwa, Y., Mitchell, N. & Shakeel, H., 17 Apr 2023, Proceedings of the IEEE Applied Sensing Conference, APSCON 2023. Institute of Electrical and Electronics Engineers Inc., 3 p. (IEEE Applied Sensing Conference (APSCON): Proceedings).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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Restoring adsorption properties of graphene sensor with printable glass encapsulation using UV illumination
Ann Jose, S., Atwa, Y., Mao, J. & Shakeel, H., Jul 2023, In: Flatchem. 40, 8 p., 100510.Research output: Contribution to journal › Article › peer-review
Open AccessFile4 Citations (Scopus)37 Downloads (Pure)