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SUMMARY:And we thought organic MIS devices were simple structures! - Profe
 ssor Martin Taylor\, School of Electronic Engineering\, Bangor University
DTSTART:20090521T133000Z
DTEND:20090521T143000Z
UID:TALK18132@talks.cam.ac.uk
CONTACT:Dr. Z Chen
DESCRIPTION:The presentation will show how small-signal admittance measure
 ments on organic MIS diodes can be used to extract important materials pro
 perties and device parameters. Starting from the small-signal response of 
 an ideal MIS diode\, the influence of additional processes such as insulat
 or leakage will be considered and parasitic effects identified. Once these
  are identified and countered\, and in the case of a p-type semiconductor 
 such as P3HT\, it then becomes possible to determine a density of states f
 or traps at the insulator/semiconductor interface. The presentation will c
 onclude with our recent work on resistive RAMs and photocapacitance measur
 ements on MIS diodes.\n
LOCATION:Small Lecture Theatre\, Cavendish Laboratory\, Department of Phys
 ics
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