A Properties of Graphene (Published)
Graphene is pure carbon in the form of a very thin, nearly transparent sheet, one atom thick. It is remarkably strong for its very low weight (100 times stronger than steel and it conducts heat and electricity with great efficiency. Graphene with the unique combination of bonded carbon atom structures with its myriad and complex physical properties is poised to have a big impact on the future of material sciences, electronics and nanotechnology. Owing to their specialized structures and minute diameter, it can be utilized as a sensor device, semiconductor, or for components of integrated circuits. The reported properties and applications of this two-dimensional form of carbon structure have opened up new opportunities for the future devices and systems.
Atomic Resolution of Topography Images of (Graphite, Gold, n-type Silicon Wafer and Cadmium Oxide Films) Using STM (Published)
Morphological surface images analyze the atomic resolution in 3-dimensions,the colored lateral images map, the graphic line, the forward and back shaded map with 3-Dimensions, for graphite, gold, n-type silicon wafer and cadmium oxide films by using scanning tunneling microscopy(STM) all are investigated. The images of surface graphite showed a regular geometrically distribution with 2.5nm hexagonal arrangement atoms about with 0.34nm level distance . But the gold surface showed a convergence atoms and great density of electrons. While the n-type Si (100) wafer refers to stacking rows and show a linear defect(dislocations) arising from inserting an extra impurities. The images clearly showed that phosphor atom located in substitutional site among silicon atoms with high nanoscale resolution. Also the mixing of oxygen molecular with cadmium and their locations appear like island. Itʼs applied to study cadmium oxide films deposited on holder surfaces. The simulated images show the main key features of experimental observations, with ability and direct methods for imaging identical theoretically with model of tunneling quantum.