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Field-dependent thermal injection into a disordered molecular insulator

✍ Scribed by Yu.N. Gartstein; E.M. Conwell

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 424 KB
Volume: 255
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(96)00359-4

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✦ Synopsis

A Monte Carlo simulation is performed of emission-limited injection into an energetically disordered molecular insulator. For thermal injection, disorder leads to the increased probability for injected carriers to return to the electrode. As a result, enhanced non-linearity of the injected current is found with respect to applied electric field compared to that caused by the image force only. Particularly, the field-dependent part of the effective activation energy is significantly increased by disorder. These effects are in sharp contrast to those found for hot injected carriers.

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