Graphene sensor

Response of single-layer graphene sensor towards stepwise increases in NOj in a carrier gas of N2 with 20% O2. Plot shows change in response direction with increasing NO2 concentration. The dashed line shows results taken at 50°C and the dotted line shows results taken at 25°C. Reprinted with permission from Sensors and Actuators B, 155 (2), 451-5. 2011 Elsevier (Pearce etal., 2011b). 

Different stacking order, geometries, edge type, and passivation are considered in the study of the graphene sensors. The results show that graphene ribbons (actually molecules) resemble semiconductors but their HOMO-LUMO gaps are edge and passivation dependent. 

Rangel NL, Seminario JM (2010) Vibronics and plasmonics based graphene sensors. J Chem Phys 132 125102... 

Dopamine and serotonin were simultaneously and selectively detected using a porphyrin-graphene sensor, prepared by a condensation reaction of GO and 5,15-bis(p-aminophenyl)-10,20-bis(pentafluorophenyl)porphyrin followed by electrochemical reduction [132],... 

Zhu, Z., Garcia-Gancedo, L., Flewitt, A.J., Xie, H., Moussy, F., and Milne, W.I. (2012) A critical review of glucose biosensors based on carbon nanomaterials carbon nanotubes and graphene. Sensors, 12, 5996-6022. 

Fan, L., et al., Ferrocene functionalized graphene preparation, characterization and efficient electron transfer toward sensors ofH202. Journal of Materials Chemistry, 2012. 22(13) ... 

Guo, C.X., et al., RGD-Peptide functionalized graphene biomimetic live-cell sensor for realtime detection of nitric oxide molecules. ACS Nano, 2012. 6(8) p. 6944-6951. 

Wang, L., et al., A novel hydrogen peroxide sensor based on Ag nanoparticles etectrodeposited on chitosan-graphene oxide/cysteamine-modified gold electrode. Journal of Solid State Electrochemistry, 2012.16(4) p. 1693-1700. 

Chung, M.G., et al., Flexible hydrogen sensors using graphene with palladium nanoparticle decoration. Sensors and Actuators B Chemical, 2012.169(0) p. 387-392. 

There is an overview of the probe nanotechnology research in the Center of Probe Microscopy and Nanotechnology of MET (TU). We demonstrate the results in development of quasi-one-dimensional metallic and carbon electronics, carbon nanotubes production, sensor application, and graphene based nanosystem devices. 

RangeL N. L. and J. A. Seminario. 2008. Graphene terahertz generators for molecular circuits and sensors. Journal of Physical Chemistry A 112 13699—13705. 

Recent trends in silicon carbide (SiC) and graphene-based gas sensors... 

Key words field effect gas sensors, SiC gas sensors, smart sensing, temperature cychng, epitaxial graphene on SiC gas sensors. 

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