H.C.F. Martens

Charge transport in doped polythiophene

Abstract The conductive properties of the conjugated polymer polythiophene doped with FeCl3 are studied as a function of frequency co/2n, electric field E, temperature T and dopant concentration c. The data show a transition from quasi-one-dimensional (for low doping levels) to three dimensional (for high doping) variable range hopping. At all doping levels the macroscopic carrier mobility μ is determined by inter-chain hopping.

DOPANT-INDUCED CROSSOVER FROM 1D TO 3D CHARGE TRANSPORT IN CONJUGATED POLYMERS

The interplay between inter- and intrachain charge transport in bulk polythiophene in the hopping regime has been clarified by studying the conductivity

Measurement of the complex dielectric constant down to helium temperatures. I. Reflection method from 1 MHz to 20 GHz using an open ended coaxial line

\ensuremath{\sigma}

Performance of a polymer light-emitting diode with enhanced charge carrier mobility

as a function of frequency

Measurement of the complex dielectric constant down to helium temperatures. II. Quasioptical technique from 0.03 to 1 THz

\ensuremath{\omega}/2\ensuremath{\pi}

Frequency and Temperature Scaling in the Conductivity and Its Structural Consequences

(up to 3 THz), temperature

Hole transport in poly(p-phenylene vinylene)

T

Non-linear transport in disordered Carbon-Black/Polymer composites

, and doping level

Frequency dependent carrier mobility in polymer LED’s

c

Dopant effect on the charge transport in conjugated polymers

. We present a model which quantitatively explains the observed crossover from quasi-one-dimensional transport to three-dimensional hopping conduction with increasing doping level. At high frequencies the conductivity is dominated by charge transport on one-dimensional conducting chains.