Paper Presentation & Seminar Topics: Paper Presentation on Nanotechnology

Paper Presentation on Nanotechnology

Abstract : (Seminar) Boron nitride (BN) is a synthetic white solid material which remained undeveloped as a commercial material until the latter half of the 20th century. Boron and gas are neighbors of carbon in the oscillating table (in combination element and gas hit the aforementioned number of outmost shell electrons) and the microscopic radii of element and gas are kindred to that of carbon. It is not surprising, therefore, that element nitride and carbon show similarity in their crystal structure.Consequently, researchers hit been exploring BN nanomaterials – from nanotubes to nanosheets and nanoribbons – and institute similarities, but also differences to the the properties of the corresponding carbon nanomaterials. BN nanotubes, for instance, hit many of the excellent properties of the well-known carbon nanotubes (CNTs) because they share the aforementioned structure. BN nanotubes were institute to hit broad chemical stability, broad status to reaction at broad temperatures and are a steady wide-band-gap conductor which makes them useful for applications at broad temperatures or in destructive environments (see Nanotechnology in space).
Similarly, impelled by the outstanding properties of graphene, the element nitride single layer – a structural faith of graphene – has been extensively unnatural both theoretically and experimentally, and has been experimentally realized.Cutting the element nitride single layer makes it possible to obtain BN nanoribbons (BNNRs). These BN-based nanomaterials also show broad thermal and chemical stability, and hit upraised great expectations for applications for happening in nanoscale electronic devices.However, BN nanomaterials, from nanotubes to nanosheets and nanoribbons, are wide-band-gap semiconductors, and their adornment structures are rather robust, and difficult to modulate, which is a substantial obstacle for their applications in nanoelectronic devices, Zhongfang Chen, an assort academic at the Department of Chemistry at the University of Puerto Rico, explains to Nanowerk. As a result, numerous efforts were devoted to control the adornment scheme of BN nanomaterials.Only recently, researchers hit demonstrated that graphene's properties crapper be dominated by reversible hydrogenation – resulting in graphane (see: Researchers convert graphene into its hydrogenated equivalent graphane). This work has been the prototypal to show that a chemical move crapper be used to tailor the properties of a nano-material like graphene, in visit to tune it to a particular application.In a past essay in Journal of the American Chemical Society (Hydrogenation: A Simple Approach To Realize Semiconductor-Half-Metal-Metal Transition in Boron Nitride Nanoribbons), an international aggroup led by Chen and Zhen Zhou, an assort academic at Nankai University in PR China, predicted that hydrogenation might also be a ultimate move to tune the adornment scheme of graphene-like element nitride structures.