Electronic memory effects in zinc oxide nanoparticle -polystyrene devices with a calcium top electrode

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review


Diodes with an active layer of solution processed zinc oxide (ZnO) nanoparticles and polystyrene are studied. Poly(3,4-ethylenedioxythiophene)- polystyrenesulfonate (PEDOT:PSS) on indium doped tin oxide (ITO) is used as the bottom electrode and aluminum or calcium are used as top electrode. Pristine devices show diode behavior in their current-voltage characteristics. The conductivity of the device in reverse bias can be raised three orders of magnitude by applying a positive voltage or by illumination with UV light. In this high conductivity state we observe reversible electronic memory effects. The electronic memory effects are attributed to a reversible electrochemical process at the PEDOT:PSS/ZnO interface. Memory effects in diodes with Al and Ca metal electrode are found to be very similar, consistent with the view that the memory effects arise at the PEDOT:PSS/ZnO interface.

Originele taal-2Engels
TitelOrganic Electronics
SubtitelMaterials, Devices and Applications
UitgeverijMaterials Research Society
Aantal pagina's6
ISBN van geprinte versie9781604234176
StatusGepubliceerd - 1 dec 2006
Evenement2006 Materials Research Society Fall Meeting - Boston, MA, Verenigde Staten van Amerika
Duur: 27 nov 20061 dec 2006

Publicatie series

NaamMaterials Research Society Symposium Proceedings
ISSN van geprinte versie0272-9172


Congres2006 Materials Research Society Fall Meeting
LandVerenigde Staten van Amerika
StadBoston, MA

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