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Numerical modelling transient current in the time-of-flight experiment with time-fractional advection-diffusion equations

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Abstract

In this work we report the development of an implicit finite difference numerical method for the one space dimension time-fractional advection-diffusion equation, on a bounded domain, to model the transient electrical current of the time of flight experiment of disordered (e.g. organic) semiconductors. Some numerical experiments and simulation of experimental data are carried out showing that the presented model describes accurately the transient electrical current.

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References

  1. D. Baleanu, K. Diethelm, E. Scalas, J.J. Trujillo, Fractional Calculus Models and Numerical Methods (World Scientific, Series on Complexity Nonlinearity and Chaos, Singapore, 2012)

  2. K. Diethelm, The Analysis of Fractional Differential Equations: An Application-Oriented Exposition Using Differential Operators of Caputo Type (Springer, Berlin, 2010)

    Book  Google Scholar 

  3. S.G. Samko, A.A. Kilbas, O.I. Marichev, Fractional Integrals and Derivatives: Theory and Applications (Gordon and Breach, Yverdon, 1993)

    Google Scholar 

  4. H. Scher, E. Montroll, Anomalous transit-time dispersion in amorphous solids. Phys. Rev. B 12(6), 2455–2477 (1975)

    Article  CAS  Google Scholar 

  5. V.V. Uchaikin, R.T. Sibatov, Fractional Kinetics in Solids: Anomalous Charge Transport in Semiconductors (World Scientific, Dielectrics and Nanosystems, Singapore, 2012)

  6. B.W. Philippa, R.D. White, R.E. Robson, Analytic solution of the fractional advection-diffusion equation for the time-of-flight experiment in a finite geometry. Phys. Rev. E 84, 041138 (2011)

    Article  CAS  Google Scholar 

  7. Z. Deng, V.P. Singh, F. Asce, L. Bengtsson, Numerical solution of fractional advection-dispersion equation. J. Hydraul. Eng. 130(5), 422–431 (2004)

    Article  Google Scholar 

  8. I. Karatay, S.R. Bayramoglu, An efficient difference scheme for time fractional advection dispersion equations. Appl. Math. Sci. 6(98), 4869–4878 (2012)

    Google Scholar 

  9. M.M. Meerschaert, C. Tadjeran, Finite difference approximations for fractional advection-dispersion flow equations. J. Comput. Appl. Math. 172(1), 65–77 (2004)

    Article  Google Scholar 

  10. G.H. Zheng, T. Wei, Spectral regularization method for a cauchy problem of the time fractional advection dispersion equation. J. Comput. Appl. Math. 233, 2631–2640 (2010)

    Article  Google Scholar 

  11. L. F. Morgado, M. L. Morgado, Numerical modelling transient current in the time-of-flight experiment with time-fractional advection-diffusion equations. in Proceedings of the 14th International Conference on Computational Methods in Science and Engineering, (2014)

  12. P. Zhuang, F. Liu, Implicit difference approximation for the time fractional diffusion equation. J. Appl. Math. Comput. 22(3), 87–99 (2006)

    Article  Google Scholar 

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Correspondence to L. F. Morgado.

Additional information

L. F. Morgado acknowledges financial support from Portuguese Foundation for Science and Technology (FCT), under the contracts M-ERA.NET/0001/2012 and PEst-OE/EEI/LA0008/2013.

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Morgado, L.F., Morgado, M.L. Numerical modelling transient current in the time-of-flight experiment with time-fractional advection-diffusion equations. J Math Chem 53, 958–973 (2015). https://doi.org/10.1007/s10910-014-0463-5

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  • DOI: https://doi.org/10.1007/s10910-014-0463-5

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