Using the graphene STM tip, atomic resolution images of highly oriented pyrolytic graphite and tungsten disulfide were obtained.
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For comparison purpose, separate AFM measurements were carried out on sample A by employing Agilent 5500 which consists of higher resolution tip, as shown in Figure 7a,b.
Contact mode imaging of plasma-treated poly ethylene terephthalate) films using bare silicon nitride tips yields poor image resolution because of tip-induced disruption of the surface structure.
It is a promising approach to fabricate STM tips for high resolution imaging in a fast and economical way.
Apart from using nanotube tip for high-resolution imaging, they can also be used as an active tool for surface manipulation.
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Cellvizio® LAB is a high-speed fluorescence microscope that permits real-time endoscopic fluorescence imaging through high-resolution fiber bundle micro-optics (UltraMini0 microprobe: tip diameter 2.6mm, lateral resolution 1.4μm, field of view 240μm, working distance 60μm).
Ultra-high resolution tungsten tips purchased from Micro Masch with tip radius <1 nm and back side coated with aluminum were used for the AFM experiments.
The layer deposited with a positively biased tip with sub-100-nm lateral resolution consists of nanocrystalline graphite, as verified by Raman spectroscopy.
