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Transversal and longitudinal diffusion in polar disordered organic materials
Author(s) -
Novikov Sergey V.,
Malliaras George G.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200562725
Subject(s) - transversal (combinatorics) , polar , diffusion , einstein relation , monte carlo method , condensed matter physics , effective diffusion coefficient , materials science , statistical physics , physics , thermodynamics , chemistry , mathematics , mathematical analysis , quantum mechanics , statistics , radiology , medicine , metric (unit) , operations management , magnetic resonance imaging , economics
Longitudinal and transversal diffusion of charge carriers in disordered polar organic materials has been studied using Monte Carlo simulation. It was found that the simple Einstein relation is valid for the transversal diffusion coefficient, while neither the simple nor the modified Einstein relation is valid for the longitudinal diffusion coefficient. Effect of the field dependence of the transversal diffusion coefficient on the ultimate resolution of organic devices has been discussed. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)