CUED Publications database

Nondispersive electron transport in Alq<inf>3</inf>

Malliaras, GG and Shen, Y and Dunlap, DH and Murata, H and Kafafi, ZH (2001) Nondispersive electron transport in Alq<inf>3</inf>. Applied Physics Letters, 79. pp. 2582-2584. ISSN 0003-6951

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Abstract

We have studied room temperature electron transport in amorphous films of tris (8-hydroxyquinolinolato) aluminum (III) (Alq3) with the time-of-flight technique. Nondispersive photocurrent transients indicate the absence of intrinsic traps in well-purified films. Exposure of the films to ambient atmosphere results in highly dispersive transport, indicating that oxygen is a likely candidate for a trapping site. The mobility was found to obey the Poole-Frenkel law. We use the correlated disorder model to determine an effective dipole moment for Alq3, and the corresponding meridional to facial isomeric ratio. © 2001 American Institute of Physics.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 10 Sep 2017 20:11
Last Modified: 27 Jun 2019 02:03
DOI: 10.1063/1.1410343