The ionics and electronics of polymeric semiconductors
Type:
Colloquium
Date/Time:
2009-02-23 16:00
Location:
Weniger 153
Event speaker:
Prof. Mark Lonergan, Department of Chemistry, University of Oregon
Title:
The ionics and electronics of polymeric semiconductors
Contact:
Abstract
The device physics and interface chemistry of conjugated polymers are heavily influenced by the transport of both ionic and electronic charge carriers. During the doping of conjugated polymers, ions are introduced for charge compensation. These ions are typically mobile and substantially alter the electric field distribution within and characteristics of conjugated polymer devices relative to analogues based on more traditional inorganic semiconductors. In this talk, the influence of ions on the device physics and chemistry of conjugated polymers and their junctions will be discussed. Topics include charge injection, the influence of ion motion on the stability of interfaces, and ionic analogues to the classic pn junction.
Refreshments will be served half an hour before the start of the colloquium in Weniger 305.