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RESEARCH PRODUCT
Supramolecular Order of Solution-Processed Perylenediimide Thin Films
Claudia PiliegoSimone FabianoZhihua ChenAntonio FacchettiCherno JayeBruno PignataroDaniel A. FischerMaria Antonietta LoiHe WangYueh-lin Loosubject
Materials scienceSupramolecular chemistryAnalytical chemistryStackingSEMICONDUCTORSsolution processesSCALING BEHAVIORBiomaterialsACTIVE LAYERSElectrochemistryCHARGE-TRANSPORTThin filmn-Type semiconductorcharge injectionIntermolecular forcesupramolecular electronicsThin FilmCondensed Matter Physicsorganic transistorsXANESSurface energyElectronic Optical and Magnetic MaterialsChemical physicsMOBILITYGROWTHMORPHOLOGYSupramolecular electronicsAbsorption (chemistry)FIELD-EFFECT TRANSISTORSCONJUGATED POLYMERSGALLIUM-ARSENIDEdescription
N,N ′ -1 H ,1 H -perfl uorobutyl dicyanoperylenecarboxydiimide (PDIF-CN 2 ), a soluble and air stable n-type molecule, undergoes signifi cant reorganization upon thermal annealing after solution deposition on several substrates with different surface energies. Interestingly, this system exhibits an exceptional edge-on orientation regardless of the substrate chemistry. This preferential orientation is rationalized in terms of strong intermolecular interactions between the PDIF-CN 2 molecules. The presence of a pronounced π– π stacking is confi rmed by combining near-edge X-ray absorption fi ne structure spectroscopy (NEXAFS), dynamic scanning force microscopy (SFM) and surface energy measurements. The remarkable charge carrier mobility measured in fi eld-effect transistors, using both bottom- and top-contact (bottom-gate) confi gurations, underlines the importance of strong intermolecular interactions for the realization of high performing devices.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-12-06 | Advanced Functional Materials |