Conductance through glycine in a graphene nanogap
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We report theoretical analysis of charge transport process through a single glycine molecule utilizing graphene nanogaps. Density functional theory and non-equilibrium Green’s function method are employed to investigate the transport properties of glycine inside the gap. The projected density of states, transmittance, and the current–voltage characteristics are determined with changes in the molecular orientation inside the nanogap of c.a 0.8 nm. The current values demonstrate a high sensitivity on the orientation of the molecule. The conductance of the molecule is also dependent on the voltage.
KeywordsGlycine Graphene nanogap DFT Molecular electronics Nanoelectronics Modeling and simulation
This study received financial support from the Brazilian funding agency CNPq.
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Conflict of interest
The authors declare that they have no conflict of interest.
- Cao W, Kang J, Liu W, Khatami Y, Sarkar D, Banerjee K (2013) 2D electronics: graphene and beyond. In: Proc Eur Solid-State Device Res Conf, pp 37–44Google Scholar
- Dennington R, Keith T, Millam J (2006) GaussView, Version 4.1.2. Semichem Inc., Shawnee MissionGoogle Scholar
- Ferretti F, Bonferroni B, Calzolari A, Buongiorno MN (2010) WanT Code, http://www.wannier-transport.org
- Galperin M, Ratner MA, Nitzan A (2007) Molecular transport junctions: vibrational effects. J Phys: Condens Matter 103201:19Google Scholar
- Hatzor A, Weiss PS (2001) Molecular rulers for scaling down nanostructures. Science 291:1019–1020Google Scholar
- Horri A, Faez R, Pourfath M, Darvish G (2017b) Modelling of a vertical tunneling transistors based on graphene-WS2 heterostructure. IEEE Trans Elect Dev 99:1–7Google Scholar
- Wang J, Shen F, Wang Z, He G, Qin J, Cheng N, Yao M, Li L, Guo X (2014) Point decoration of silicon nanowires: an approach toward single-molecule electrical detection. Angew Chem 53:5038–5043Google Scholar
- Wang W, Lee T, Reed MA (2007) Electrical characterization of self-assembled monolayers. In: Lyshevski SE (ed) Nano and molecular electronics handbook. Chapter 1, pp 3. CRC Press, Boca RatonGoogle Scholar