期刊
NANOSCALE
卷 4, 期 5, 页码 1677-1681出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2nr11635a
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资金
- ERC [GA-257305]
- Marie Curie project ITN-SUPERIOR [PITN-GA-2009-238177]
- EC [212311]
- NanoSci-E+ project SENSORS
- Marie Curie project ITN-GENIUS [PITN-GA-2010-264694]
- Marie Curie RTN THREADMILL [MRTN-CT-2006-036040]
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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