Configurational fluctuations of conducting polymers in solution can bring into proximity monomers which are distant from each other along the backbone. Electrons can hop between these monomers across the “bridges” so formed. We show how this can lead to (i) a collapse transition for metallic polymers, and (ii) to the observed dramatic efficiency of acceptor molecules for quenching fluorescence ...

The preparation of individual polyacetylene nanofibres has allowed a more probing investigation of the properties of polyacetylene. A significant discovery is that at low temperatures, polyacetylene nanofibres show temperature-independent Zener-type tunnelling, that we suggest is tunnelling of the conjugated-bond pattern along single polyacetylene chains. At higher temperatures, the current sho...

We present generalised Monte-Carlo calculations to assess the effects of texture and related key factors on the properties of polymer-based light emitting diodes. We describe one class of mesoscopic model giving specific realisations of the polymer network. The model, with simple physically-based rules, shows the effects of polymer structural order on current flow, trapping, and radiative and n...

INTRODUCTION The development of conducting colloids stemmed from applications driven needs for proeessable conducting polymers. Because conducting polymers are aggregated in nature, due to their conjugated backbones, the preparation of colloidal systems of these aggregates is an attractive approach to by-passlng the intractability problem. The reason for focussing on the two particular colloida...

During the past decade, transport properties of conducting polymers such as doped polyacetylene and polyaniline-polyethylene oxides, were and still are intensively studied [1, 2]. These materials are significant mostly due to various possible applications in fabrication of nanodevices. Polymer-based devices should have advantages of low cost and flexible, controlled chemistry. Also, there are s...