Skip to main content

Progress towards Understanding the Charge Transport Hopping Mechanism in Molecularly Doped Polymers

Buy Article:

$20.00 plus tax (Refund Policy)


Recent progress towards understanding the charge transport mechanism in molecularly doped polymers MDP is reviewed. It has already been shown that the mobility is not understandable in terms of the Gaussian Disorder Model (GDM) or any other available model. In this paper, it is shown that characteristic features of the current-time transient are also not understandable in terms of available models. In addition, a method has been used to convert disorder energies obtained from GDM into Arrhenius activation energies. Using this methodology a list has been compiled of the activation energies of all molecularly doped polymers which have been characterized as a function of dopant concentration. This list demonstrates that disorder and polaron binding energies are small compared to observed activation energies, suggesting that some higher energy process determines the charge transport mechanism in MDP. The experimental observations of activation energies that depend on ρ, the distance between hoping sites, and pre-factors independent of ρ are attributed to either interactions among the dopant molecules or the failure of the lattice gas model to properly calculate ρ at high dopant concentrations.

Document Type: Research Article

Publication date: 2009-01-01

More about this publication?
  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more