Passivation effect of Al∕LiF electrode on C60 diodes

Passivation effect of Al∕LiF electrode on C60 diodes

The current–voltage characteristics, the temperature dependence of the dark conductivity, and the effect of oxygen exposure of C60 sandwich diodes are compared with Al and Al∕LiF as electrodes. It appears that a thin LiF interlayer can help to preserve the space-charge limited conduction in C60 diod...

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Bibliographic Details
Published in:Applied physics letters Vol. 86; no. 3
Main Authors: Huang, C. J., Grozea, D., Turak, A., Lu, Z. H.
Format: Journal Article
Language:English
Published: 17-01-2005
Online Access:Get full text
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Summary:The current–voltage characteristics, the temperature dependence of the dark conductivity, and the effect of oxygen exposure of C60 sandwich diodes are compared with Al and Al∕LiF as electrodes. It appears that a thin LiF interlayer can help to preserve the space-charge limited conduction in C60 diodes under exposure to air, by considerably suppressing the oxygen diffusion into the C60 film and reaction at the Al∕C60 interface.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1854193