Photoconductive and supramolecularly engineered organic field-effect transistors based on fibres from donor-acceptor dyads.
Nanoscale
; 4(5): 1677-81, 2012 Mar 07.
Article
en En
| MEDLINE
| ID: mdl-22293776
We report on the formation of photoconductive self-assembled fibres by solvent induced precipitation of a HBC-PMI donor-acceptor dyad. Kelvin Probe Force Microscopy revealed that upon illumination with white light the surface potential of the fibres shifted to negative values due to a build-up of negative charge. When integrated in a field-effect transistor (FET) configuration, the devices can be turned 'on' much more efficiently using light than conventional bias triggered field-effect, suggesting that these structures could be used for the fabrication of light sensing devices. Such a double gating represents an important step towards bi-functional organic FETs, in which the current through the junction can be modulated both optically (by photoexcitation) and electrically (by gate control).
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Nanoscale
Año:
2012
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Reino Unido