Polymer Nanofibers and Nanotubes: Charge Transport and Device Applications

Charge Transport in Carbon Nanotubes-Polymer Composite Photovoltaic Cells

We investigate the dark and illuminated current density-voltage (J/V) characteristics of poly(2-methoxy-5-(2-ethylhexyloxy)1-4-phenylenevinylene) (MEHPPV)/single-walled carbon nanotubes (SWNTs) composite photovoltaic cells. Using an exponential band tail model, the conduction mechanism has been analysed for polymer only devices and composite devices, in terms of space charge limited current (SC...

One-dimensional transport in polymer nanofibers.

We report our transport studies in quasi-one-dimensional (1D) conductors-helical polyacetylene fibers doped with iodine-and the data analysis for other polymer single fibers and tubes. We found that at 30 K<T<300 K, the conductance and the current-voltage characteristics follow the power law G(T) proportional, Talpha with alpha approximately 2.2-7.2 and I(V) proportional, Vbeta with beta approx...

Self-Assembly of Carbon Nanotubes by Drop Drying Multicolor Photoluminescence from Porous Silicon Charge Transport in Polymer Nanotubes/Nanofibers Vesicular Fluorescence Sensors

Charge Transport in Conducting Polymer Film Electrodes

A polymer film electrode can be defined as an electrochemical system in which at least three phases are contacted successively in such a way that between a first-order conductor (usually a metal) and a second-order conductor (usually an electrolyte solution) is an electrochemically active polymer layer. The polymer layer is more or less stably attached to the metal, mainly by adsorption (adhesi...

On the Electron Transport in Conducting Polymer Nanofibers

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...