Reversible charge transfer in solids; binary approximation
Department of Physical Chemistry, Hebrew University of Jerusalem,
Jerusalem 91904, Israel
Published online: 15 May 2000
A common theory of reversible charge transfer (RCT) kinetics for low and high excitation power with the use of the conditional concentration of acceptors is presented. A comparison with recently published RCT theory is given. The results are similar or identical only in restricted or fractal spaces of low dimension, and in the case of low concentration of acceptors, i.e. in all the cases when the conditions of the binary approximation are fulfilled. The deviation from the binary approximation results in a physically incorrect picture, the cause being due to the different space averaging procedure. The probability of the donor's cation state is an increasing function of the concentration of the acceptor and of the characteristic parameters of the rate constants.
PACS: 78.20.Bh – Theory, models, and numerical simulation / 89.90.+n – Other topics of general interest to physicists
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000