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The practical use of a scanning tunneling microscope for modifying the sample surface and for creation of nano-objects on the sample surface is shown. The possibility of modification of the sample surface by tunneling current was shown. Nano-objects on the surface of the experimental samples were created using contact and non-contact modification of surface. This may also enable preparation of the...
In the field of tissue engineering, resembling the morphology and structure of extracellular matrix (ECM) is the main objective. ECM is a porous and fibrous structure which provides structural and biochemical support to the surrounding cells. Nowadays, electrospinning made scaffolds, which have controllable membrane thickness, fine structure and large surface area to volume ratio are commonly used...
III-nitride nanowires (NWs) were grown on Si(111) without catalyst by plasma-assisted molecular-beam epitaxy under N-rich conditions. The influence of doping on the morphology and electrical properties was investigated. The morphology as well as the density of GaN NWs changes with Si amount. For high Si fluxes, the wire density is reduced, in addition, the NWs broaden from bottom to top. By doping...
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