CUED Publications database

Hole injection from indium tin oxide into triphenyl diamine

Shen, Y and Jacobs, DB and Malliaras, GG (2001) Hole injection from indium tin oxide into triphenyl diamine. In: UNSPECIFIED 100-..

Full text not available from this repository.


We have measured the electrical characteristics at the contact between Indium Tin Oxide (ITO) and N-N′diphenyl-N-N′-bis(3-methylphenyl)-1-1-biphenyl-4,4′-diamin e (TPD). By carrying out independent measurements of the hole mobility in the organic layer we are able to isolate the injection and the transport processes and study the electrical characteristics of the contact alone. We find that the contact is in fact not Ohmic, but current-limiting, despite the fact that the current has a similar electric field dependence as the space charge limited current. The contact remains current-limiting even when the hole mobility is lowered by three orders of magnitude by diluting TPD into polycarbonate. The data support a model of injection in disordered materials.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Depositing User: Cron Job
Date Deposited: 10 Sep 2017 20:11
Last Modified: 21 Mar 2019 02:00
DOI: 10.1117/12.416881