The Temperature-Dependence of the Saturation Voltage for Molecular Assembly System with the Effect of the Intermolecular Spacing

Abstract:

Numerical simulations have been performed to investigate the effect of the temperature on the electronic transport through a small group of molecular assembly system (MAS). The model involves two 1,4-dithiolbenzene (DTB) molecular units stacked in one dimension (1D). The currentvoltage (I-V) and the conductance voltage (G-V) analysis are presented under the influence of the temperature associated with the π-orbital coupling interactions controlled by the intermolecular spacing d. The MAS with reduced d affects significantly the conductance which results in reducing the conductance gap and the saturation voltage V_sat. In addition, the present results show that the temperature rise effect plays an important role in determining the current flow in the saturation region. In this region, it is important to note that V_sat increases linearly when T goes from 50 to 325 K_.. To conclude, V_sat can be controlled either by changing the temperature or modifying its intermolecular spacing conformation.

• Periodical: Advanced Materials Research (Volumes 774-776)
• Pages: 593-598
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.774-776.593
• Online since: September 2013
• Authors: Aissa Boudjella
• Keywords: Conductance Gap, HLG, HOMO, Intermolecular Spacing, LUMO, Molecular Assembly System, Saturation Voltage, Temperature, π-orbital Coupling

References

[1] C. D. Bain, et al: J. Am. Chem. Soc. 111 (1989) 7155.

[2] J. Noh and M. Hara: RIKEN Rev. (2001) No. 38, 49.

[3] D. M. Collard and M. A. Fox: Langmuir 7 (1991) 1192.

[4] M. A. Reed, J. M. Tour et al: Science 278 (1997) 252.

[5] J. Chen, M. A. Reed, A. M. Rawlett, and J. M. Tour: Science 28.

[6] J. Chen, L. C. Calvet, M. A. Reed, D. W. Car, D. S. Grubisha, and D. Bennet: Chem. Phys. Lett. 313 (1999) 748.

[7] C. Zhou, et al: Appl. Phys. Lett. 71 (1997) 611.

[8] M. Buttiker, et al: Phys. Rev. B 31 (1985) 6207.

[9] S. Datta: Electronic Transport in Mesoscopic (Cambridge University Press, Cambridge, U.K., 1995), p.57.

[10] Jan M. Rabaey, A. Chandrakasan, B. Nikolic. Digital integrated circuits/ A design prespective, second edition.

[11] S. Datta: Electronic Transport in Mesoscopic (Cambridge University Press, Cambridge, U.K., 1995), p.57.

[12] F. Zahid, M. Paulsson, and S. Datta: in Semiconductors and Organic Nano-tecniques, ed. H. Morkov (Academic Press, New York, 2003).

[13] S. N. Yaliraki et al: J. Am. Chem. Soc. 121(1999) 3428.

[14] www. nanohub. org.

[15] A. Boudjella et al. Japanese journal of applied physics Vol. 47, No 6, 2008, pp.4969-4974.

[16] Aissa Boudjella. 9 th national symposium on polymetric material 2009, December14-16, 2009, Uniten, Putrajaya, Malysia.

[17] Aissa Boudjella. Applied Mechanicas and materials. Trans Tech publications, Switzerland, Vol. 307(2013), pp.399-403.

[18] Aissa Boudjella. Applied Mechanicas and materials. Trans Tech publications, Switzerland Vol. 307(2013), pp.404-408.