The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Reduced graphene oxide for room-temperature gas sensors
Open accessAbstract
We demonstrated high-performance gas sensors based on graphene oxide (GO) sheets partially reduced via low-temperature thermal treatments. Hydrophilic graphene oxide sheets uniformly suspended in water were first dispersed onto gold interdigitated electrodes. The partial reduction of the GO sheets was then achieved through low-temperature, multi-step annealing (100, 200, and 300 degrees C) or one-step heating (200 degrees C) of the device in argon flow at atmospheric pressure. The electrical conductance of GO was measured after each heating cycle to interpret the level of reduction. The thermally-reduced GO showed p-type semiconducting behavior in ambient conditions and was responsive to low-concentration NO2 and NH3 gases diluted in air at room temperature. The sensitivity can be attributed mainly to the electron transfer between the reduced GO and adsorbed gaseous molecules (NO2/NH3). Additionally, the contact between GO and the Au electrode is likely to contribute to the overall sensing response because of the adsorbates-induced Schottky barrier variation. A simplified model is used to explain the experimental observations.
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Cites
Electric Field Effect in Atomically Thin Carbon Films
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Zhang, Y., Dubonos, S. V., Grigorieva, I. V., & Firsov, A. A. (2004) · Science · doi:10.1126/science.1102896 · Cited by 66,834
Geim, A. K., & Novoselov, K. S. (2007) · Nature Materials · doi:10.1038/nmat1849 · Cited by 39,979
Superior Thermal Conductivity of Single-Layer Graphene
Balandin, A. A., Ghosh, S., Bao, W., Calizo, I., Teweldebrhan, D., Miao, F., & Lau, C. N. (2008) · Nano Letters · doi:10.1021/nl0731872 · Cited by 13,823
Cited by
Hammock, M. L., Chortos, A., Tee, B. C. ‐., Tok, J. B. ‐., & Bao, Z. (2013) · Advanced Materials · doi:10.1002/adma.201302240 · Cited by 2,396
Raman spectroscopy of graphene-based materials and its applications in related devices
Wu, J.-B., Lin, M.-L., Cong, X., Liu, H.-N., & Tan, P.-H. (2018) · Chemical Society Reviews · doi:10.1039/c6cs00915h · Cited by 2,092
Liu, H., Liu, Y., & Zhu, D. (2011) · J. Mater. Chem. · doi:10.1039/c0jm02922j · Cited by 1,629
Environmental applications of graphene-based nanomaterials
Perreault, F., Fonseca de Faria, A., & Elimelech, M. (2015) · Chemical Society Reviews · doi:10.1039/c5cs00021a · Cited by 1,528
Room Temperature Gas Sensing of Two-Dimensional Titanium Carbide (MXene)
Lee, E., VahidMohammadi, A., Prorok, B. C., Yoon, Y. S., Beidaghi, M., & Kim, D.-J. (2017) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.7b11055 · Cited by 878
Metadata
- Authors
- Lu, G., Ocola, L. E., & Chen, J.
- Venue
- Nanotechnology
- Publisher
- IOP Publishing
- Published
- 2009-10-07
- Volume
- 20
- Issue
- 44
- Pages
- 445502
- ISSN
- 0957-4484 (ISSN-L)
- 1361-6528
- OpenAlex
- W2127824358
- Cited by
- 775
- References
- 3
- FWCI
- 20.06
- Type
- journal article
- Language
- en
- Open access
- bronze
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