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Low-resistance gas sensors fabricated from multiwalled carbon nanotubes coated with a thin tin oxide layer
Abstract
Gas sensors have been fabricated from multiwalled carbon nanotubes (MWNTs) coated with a thin tin oxide layer, and have been used to detect oxidizing and reducing gases down to a ppm level. The barriers between the tin oxide nanocrystal grains on the MWNTs dominate the sensor resistance in different gases, and the conducting carriers in the MWNTs have a low resistance, which make the resistance of the sensors much lower than that of SnO2 nanobelt sensors. The resistance is 130kΩ in air, 230kΩ in 2ppm NO2, and 2.8MΩ in 50ppm NO2, so that impedance matching with amplifying circuits can be easily achieved.
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Citations
Cited by
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Eder, D. (2010) · Chemical Reviews · doi:10.1021/cr800433k · Cited by 819
Review of Gravimetric Sensing of Volatile Organic Compounds
McGinn, C. K., Lamport, Z. A., & Kymissis, I. (2020) · ACS Sensors · doi:10.1021/acssensors.0c00333 · Cited by 152
Ultrasensitive reversible oxygen sensing by using liquid-exfoliated MoS 2 nanoparticles
Kim, Y. H., Kim, K. Y., Choi, Y. R., Shim, Y.-S., Jeon, J.-M., Lee, J.-H., Kim, S. Y., Han, S., & Jang, H. W. (2016) · Journal of Materials Chemistry A · doi:10.1039/c6ta01277a · Cited by 90
Metadata
- Authors
- Liang, Y. X., Chen, Y. J., & Wang, T. H.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2004-07-26
- Volume
- 85
- Issue
- 4
- Pages
- 666-668
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2065666964
- Cited by
- 201
- References
- 0
- FWCI
- 10.46
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Low-resistance gas sensors fabricated from multiwalled carbon nanotubes coated with a thin tin oxide layer. https://app.cochat.ai/papers/10.1063/1.1775879
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- Liang, Y. X., Chen, Y. J., & Wang, T. H. (2004). Low-resistance gas sensors fabricated from multiwalled carbon nanotubes coated with a thin tin oxide layer. Applied Physics Letters. https://doi.org/10.1063/1.1775879
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