CUED Publications database

Mobility-dependent charge injection into an organic semiconductor.

Shen, Y and Klein, MW and Jacobs, DB and Campbell Scott, J and Malliaras, GG (2001) Mobility-dependent charge injection into an organic semiconductor. Phys Rev Lett, 86. pp. 3867-3870. ISSN 0031-9007

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Abstract

Measurements of charge injection from indium tin oxide (ITO) into the organic semiconductor, tetraphenyl diamine doped polycarbonate (PC:TPD), were carried out. The current injected at the contact was measured as a function of the hole mobility in the organic semiconductor, which was varied from 10(-6) to 10(-3) cm (2)/V x s by adjusting the concentration of the hole transport agent, TPD, in the PC host. These experiments reveal that the current injected at the contact is proportional to the hole mobility in the bulk. As a result, the ITO/PC:TPD contact is found to limit current flow in all samples, regardless of the hole mobility in PC:TPD.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 10 Sep 2017 20:11
Last Modified: 07 Mar 2019 12:01
DOI: 10.1103/PhysRevLett.86.3867