Skip to main content

Field-Dependent Mobilities by Field-Inhibited Partial Polaron Formation

Buy Article:

$20.00 plus tax (Refund Policy)


The injection of a charge into an insulator should be accompanied by considerable molecular reorganization and self-trapping. Nonetheless, recently, the effects of polaron formation have been thought to be of secondary importance as compared to the degree to which correlated energetic disorder gives rise to the strongly field-dependent (Poole-Frenkel) mobilities in disordered organic solids. On the other hand, complete molecular relaxation around an isolated charge may take considerable time. In fact, if the relaxation time is longer than the average dwell time, an injected charge will tend to hop from molecule to molecule as a “partial polaron”. Under these circumstances, the mobility is extremely sensitive to small changes, as these may greatly increase or decrease the degree of polaron formation. In this talk we consider the change in mobility arising from an electric field on the order of 1 to 10KV/cm. We show that an apparently insignificant reduction of the “bare” dwell time by the applied field leads to a reduction in polaron formation, which in turn gives rise to an enormous (exponential) increase in mobility.

Document Type: Research Article

Publication date: 2000-01-01

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

  • 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