Abstract
We investigate the modulation of the charge injection in organic field-effect transistors with self-assembled monolayers (SAMs) using both a bottom-gate and a top-gate geometry. The current modulation by using SAMs is more pronounced in the top-gate geometry due to the better defined upper surface of the bottom source and drain electrodes. By modifying Ag electrodes with a perfluorinated monolayer an injection barrier as high as 1.6 eV into poly(9,9-dioctylfluorene) can be surmounted, enabling the measurement of the saturated field-effect mobility of 6 × 10-5 cm2 V-1 s-1.
Original language | English |
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Pages (from-to) | 2226-2229 |
Number of pages | 4 |
Journal | Synthetic Metals |
Volume | 161 |
Issue number | 21-22 |
DOIs | |
Publication status | Published - Nov 2011 |
Keywords
- Charge injection
- Organic field-effect transistor
- Self-assembled monolayer
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry