The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
ZnO decorated luminescent graphene as a potential gas sensor at room temperature
Abstract
We present a simplistic single step synthesis and a detailed study of the remarkable room temperature gas sensing and photoluminescence (PL) properties of zinc oxide (ZnO) decorated graphene oxide sheets (GrO). Investigation of opto-electronic properties reveal near UV to blue PL and semiconducting behavior of ZnO–GrO sheets. ZnO nano-crystallites serve the dual purpose of acting as a nano-spacer between dried graphene sheets as well as a primary sensing transducer for the gas sensing applications. PL has been used as a tool to study the defects associated with the surface of the nanocrystallite’s trap levels and/or acceptor–donor recombinations. Time-resolved PL was used to determine free carrier or exciton lifetimes, a vital parameter related to quality of composite and device performance. Results are presented for the detection of common industrial toxins like CO, NH3 and NO for concentrations as low as 1 ppm at room temperature. A large sensor response and quick recovery time was observed at room temperature with preferred selectivity towards electron donor gases like CO and NH3.
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Cites
Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611
Graphene: Status and Prospects
Geim, A. K. (2009) · Science · doi:10.1126/science.1158877 · Cited by 13,942
Graphene-based composite materials
Stankovich, S., Dikin, D. A., Dommett, G. H. B., Kohlhaas, K. M., Zimney, E. J., Stach, E. A., Piner, R. D., Nguyen, S. T., & Ruoff, R. S. (2006) · Nature · doi:10.1038/nature04969 · Cited by 12,922
Cited by
Li, Z., Li, H., Wu, Z., Wang, M., Luo, J., Torun, H., Hu, P., Yang, C., Grundmann, M., Liu, X., et al. (2019) · Materials Horizons · doi:10.1039/c8mh01365a · Cited by 760
Metadata
- Authors
- Singh, G., Choudhary, A., Haranath, D., Joshi, A. G., Singh, N., Singh, S., & Pasricha, R.
- Venue
- Carbon
- Publisher
- Elsevier BV
- Published
- 2012-02
- Volume
- 50
- Issue
- 2
- Pages
- 385-394
- ISSN
- 0008-6223 (ISSN-L)
- OpenAlex
- W1988502731
- Cited by
- 379
- References
- 3
- FWCI
- 14.93
- Type
- journal article
- Language
- en
- Open access
- closed
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- Singh, G., Choudhary, A., Haranath, D., Joshi, A. G., Singh, N., Singh, S., & Pasricha, R. (2012). ZnO decorated luminescent graphene as a potential gas sensor at room temperature. Carbon. https://doi.org/10.1016/j.carbon.2011.08.050
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