The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Suspended Graphene Sensors with Improved Signal and Reduced Noise
Abstract
We report enhanced performance of suspended graphene field effect transistors (Gra-FETs) as sensors in aqueous solutions. Etching of the silicon oxide (SiO(2)) substrate underneath graphene was carried out in situ during electrical measurements of devices, which enabled systematic comparison of transport properties for same devices before and after suspension. Significantly, the transconductance of Gra-FETs in the linear operating modes increases 1.5 and 2 times when the power of low-frequency noise concomitantly decreases 12 and 6 times for hole and electron carriers, respectively, after suspension of graphene in solution from the SiO(2) substrate. Suspended graphene devices were further demonstrated as direct and real-time pH sensors, and complementary pH sensing with the same nanodevice working as either a p-type or n-type transistor was experimentally realized by offsetting the electrolyte gate potential in solution. Our results highlight the importance to quantify fundamental parameters that define resolution of graphene-based bioelectronics and demonstrate that suspended nanodevices represent attractive platforms for chemical and biological sensors.
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Cites
Graphene: Status and Prospects
Geim, A. K. (2009) · Science · doi:10.1126/science.1158877 · Cited by 13,942
Experimental observation of the quantum Hall effect and Berry's phase in graphene
Zhang, Y., Tan, Y.-W., Stormer, H. L., & Kim, P. (2005) · Nature · doi:10.1038/nature04235 · Cited by 13,435
Label-free immunodetection with CMOS-compatible semiconducting nanowires
Stern, E., Klemic, J. F., Routenberg, D. A., Wyrembak, P. N., Turner-Evans, D. B., Hamilton, A. D., LaVan, D. A., Fahmy, T. M., & Reed, M. A. (2007) · Nature · doi:10.1038/nature05498 · Cited by 1,352
Cited by
Low-frequency 1/f noise in graphene devices
Balandin, A. A. (2013) · Nature Nanotechnology · doi:10.1038/nnano.2013.144 · Cited by 649
Kuzum, D., Takano, H., Shim, E., Reed, J. C., Juul, H., Richardson, A. G., de Vries, J., Bink, H., Dichter, M. A., Lucas, T. H., et al. (2014) · Nature Communications · doi:10.1038/ncomms6259 · Cited by 546
Adsorption and Desorption of DNA on Graphene Oxide Studied by Fluorescently Labeled Oligonucleotides
Wu, M., Kempaiah, R., Huang, P.-J. J., Maheshwari, V., & Liu, J. (2011) · Langmuir · doi:10.1021/la1037926 · Cited by 527
Hill, E. W., Vijayaragahvan, A., & Novoselov, K. (2011) · IEEE Sensors Journal · doi:10.1109/jsen.2011.2167608 · Cited by 432
Metadata
- Authors
- Cheng, Z., Li, Q., Li, Z., Zhou, Q., & Fang, Y.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-04-07
- Volume
- 10
- Issue
- 5
- Pages
- 1864-1868
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2030664084
- Cited by
- 293
- References
- 3
- FWCI
- 11.89
- Type
- journal article
- Language
- en
- Open access
- closed
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