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In this work, we report for the first time the resistive switching behavior of a new type of device made of carbon nanowalls (CNWs) deposited on fluorine-doped tin oxide (FTO) substrate. This new device shows a forming-free bipolar resistive switching behavior, with a low operating voltage of 2 V and long retention time (5 × 10ˆ4 s). The CNWs are synthesized by electrophoretic deposition of a solution...
We report sodium dodecyl sulfate (SDS) stabilization of graphene nanosheets, with two different sizes as auxiliary fillers inside the conventional electrically conductive adhesive (ECA) composite. Using this non-covalent modification approach we were able to preserve the single-layer structure of graphene layers and prevent their re-stacking inside the composite, which resulted in a significant electrical...
The production of polyyne molecules arising from the irradiation of liquid octane with femtosecond (fs) laser pulses has been studied using time of flight mass spectrometry (TOFMS). We attribute the primary formation mechanism for polyynes in solution to the creation of small polyyne and cumulene molecules formed in molecular dissociative ionization, that subsequently increase in length through addition...
Hydrogen-capped polyynes have been synthesized by 800nm femtosecond photolysis of acetone molecules. Four bands appearing in the 1800–2200cm −1 range of surface enhanced Raman spectra show a mixture of polyynes with variable chain lengths in the irradiated acetone. The shortest hydrogen-terminated chain is found to be C 6 H 2 . The presence of charged carbon dimer, monomer...
To identify the influence of microstructural variation on the X-ray diffraction intensities, X-ray diffraction patterns of hexagonal graphite (h-graphite) and turbostratic carbon (t-carbon) were simulated by using the general Debye equation. The numeric density of interatomic distance (NDID) is sensitive to the size and microstructure of a crystallite, so that it is used to characterize the structures...
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