This article is cited in 16 papers

Polymers

Effect of excessive pressure on the drift mobility of charge carriers in poly(diphenylene phthalide) films

A. R. Tameev^a, R. G. Rakhmeev^b, V. R. Nikitenko^c, R. B. Salikhov^d, A. A. Bunakov^d, A. N. Lachinov^b, A. V. Vannikov<sup>a

a</sup> Institute of Physical Chemistry and Electro Chemistry, Russian Academy of Sciences, Moscow
^b Institute of Molecule and Crystal Physics, Ufa Federal Research Centre, Russian Academy of Sciences
^c National Engineering Physics Institute "MEPhI", Moscow
^d Bashkir State Pedagogical University n. a. M. Akmulla, Ufa

Abstract: The electron-hole transport in poly(diphenylene phthalide) films has been investigated. The dependence of the drift mobility of charge carriers on the excessive mechanical pressure has been studied using the time-of-flight method. It has been revealed that, with an increase in the thickness of the polymer film, the dispersive transport of charge carries gives way to the quasi-dispersive transport. In thin films in the prethreshold range (i.e., before switching of the samples to the highly conductive state under excessive pressure), the electron mobility increases and exceeds the hole mobility. The experimental results have been discussed in the framework of the model describing the transport through the channels formed by metastable electron-hole pairs.

Received: 05.04.2010
Accepted: 06.06.2010

 English version: Physics of the Solid State, 2011, 53:1, 195–200

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