Charge injection versus space-charge-limited current in organic light-emitting diodes

A unified model of hopping carrier injection and space-charge-limited current (SCLC) in disordered organic materials is formulated. It is shown that, contrary to what one would intuitively expect, a metal contact with the injection barrier as high as 1 eV can be still an Ohmic contact at low tempera...

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Bibliographic Details
Published in:Applied physics letters 2003-12, Vol.83 (24), p.5074-5076
Main Authors: Arkhipov, V. I., von Seggern, H., Emelianova, E. V.
Format: Article
Language:English
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Summary:A unified model of hopping carrier injection and space-charge-limited current (SCLC) in disordered organic materials is formulated. It is shown that, contrary to what one would intuitively expect, a metal contact with the injection barrier as high as 1 eV can be still an Ohmic contact at low temperatures providing conditions for the hopping SCLC.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1633967