Electricalpropertiesandapplications ofcarbonnanotubestructures. These fascinating electromechanical and magnetic effects are quantified using. Carbon comes from a word latincarbo, which is derived from a word frenchcharbon, meaning charcoal. Carbon nanotubes are a hollow, cylindrical form of elemental carbon that was discovered by sumio iijima in 1991 1. Density dependence of the capacitance of a single swnt. Carbon nanotube transistors, sensors, and beyond xinjian zhou, ph. Selected topics on the synthesis, properties and applications of. Kim b, jong won lee d, ramanand gollapudi a, srinivas subramaniam c, suhasini narasimhadevara a, douglas hurd a. Spherical fullerenes are also called buckyballs,and cylindrical ones are called carbon nanotubes or buckytubes. Musa elhasan this thesis is submitted in partial fulfillment of requirements for the degree of master of physical sciences, faculty of graduate studies, annajah national university nablus, palestine. These properties make carbon nanotubes wellsuited for a wide range of applications. Introduction to materials science and engineering 12,848 views. Electrical transport in singlewall carbon nanotubes 459 fig.
Carbon nanotubes, discovered by iijima in 1991, have been one of the most interesting materials with exotic properties for the last twenty years. Depending on numbers of carbon layers, they are categorized as singlewalled and multiwalled nanotubes. Mechanical properties of functionalized carbon nanotubes. Keywords carbon nano tubes, naohorns, naobuds, electrical properties of cnt, mechanical properties of cnt, applications of. Mechanical properties of functionalized carbon nanotubes zqzhang 1,bliu,5,ylchen 1, h jiang2,kchwangand y huang3,4,5 1 fml, department of engineering mechanics, tsinghua university, beijing 84, peoples republic of china 2 department of mechanical and aerospace engineering, arizona state university, tempe, az 85287, usa. Carbon nanotubes also are stable at high temperatures and have very high thermal conductivities. Carbon can bond in different ways to construct structures with completely different properties. It is important to note that growth of carbon nanotubes in general always requires the presence of a catalyst. The carbon network of the shells is closely related to the honeycomb arrangement of the carbon atoms. Present and future commercial applications michael f. Carbon nanotubes are remarkable objects that look set to revolutionize the technological landscape in the near future. The curved ends of the nanotube contain pentagons, the walls are the normal hexagonal structure. The first application is electrochemical actuation in dry and aqueous environments. Nanotubes carbon nanotubes are classified in following two types, 1, 9 swnts single walled carbon nanotubes mwnts multiple walled carbon nanotubes comparision between swnt and mwnt is as presented in table 1.
Boron carbide nanolumps are formed on the surface of multiwall carbon nanotubes by a solidstate. Carbon nanotube biosensors, phd thesis pdf now a postdoc. Carbon nanotubes what they are, how they are made, what they. Carbon nanotube technology, an introduction engineering. Graphene is an example of a planar fullerene sheet.
John hart4,5 worldwide commercialinterest in carbon nanotubes cnts is reflectedin aproduction capacity that presently. Tuning the band structure of carbon nanotubes ethan davis minot, ph. The nanotubes may consist of one up to tens and hundreds of concentric shells of carbons with adjacent shells separation of 0. Morphological and structural types of carbon nanotubes. Functionalization of singlewalled carbon nanotubes with well.
Arc discharge method10 arc discharge method has been reported for producing carbon nanotubes. Carbon nanotubes are unique tubular structures of nanometer diameter and large lengthdiameter ratio. This is a pdf file of an unedited manuscript that has been accepted for publication. Cornell university 2004 the experiments presented in this thesis show that carbon nanotube nt electronic structure can be tuned by mechanical stretching and by magnetic fields. Pdf introduction to the important and exciting aspects of carbonnanotube science and technology. Carbon nanotubes cnts have an astounding array of properties that make them interesting. Carbon nanotubes are a new form of pure carbon that is perfectly straight tubules with diameter in nanometers, length in microns and properties close to those of an ideal graphite. Swnts consist of singular graphene cylindrical walls. Feb 11, 2018 introduction to materials science and engineering. The electronic band pstructure of graphene and carbon nanotubes. Plan of presentation introduction to cnts applications of cnts 3. Dec 24, 2016 introduction to carbon nanotubes cnts, difenation, types, structure, processing. Introduction a singlewalled carbon nanotube swcnt is a nano scale tube formed by a cylindrical shell of single atomic layer of carbon atoms.
Discovered in 1991, carbon nanotubes have caught the attention of. Introduction carbon nanotubes wiley online library. Technically, we can alter carbon nanotubes based on our necessities and requirements such as single layered nanotube, double layered nanotube, multi layered nanotube etc. Carbon nanotubes cnts are cylindrical molecules that consist of rolledup sheets. New 16bit carbon nanotube processor carbon nanotube uses. In this section we will take a closer look at one particular nanostructure. Over 10 million scientific documents at your fingertips. Science and applications at the surface so that a small partial charge induced by chemisorption of gas molecules is enough to deplete the local charge carrier and cause dramatic conductance change 4,710. If you continue browsing the site, you agree to the use of cookies on this website. Introduction singlewalled carbon nanotubes swcnts are tubular cylinders of carbon atoms, whose discovery in 1993 1 inspired much research on their synthesis and electronicoptoelectronic device applications. The catalyst is usually predeposited on the surface on which growth will take place. Introduction to the properties of carbon nanotubes.
This article provides background information that allows you to better understand technical articles that discuss carbon nanotubes. Pdf introduction on carbon nanotubes cnt and its applications. Introduction to carbon nanotubes carbon nanotubes were discovered in 1991 by sumio iijima of nec and are effectively long, thin cylinders of graphite, which you will be familiar with as the material in a pencil or as the basis of some lubricants. Rena department of physics, boston college, chestnut hill, massachusetts 02467 received 5 september 2001. Pdf carbon nanotubes cnts are nanostructures derived from rolled graphene planes and possess various interesting chemical and physical properties find, read and cite all the research you.
The catalyst can also be suspended in a hot gas stream and nanotube formation will occur that way as well. Bandarus research accomplishments span the areas of carbon nanotubes, semiconductors, and optics. Review article carbon nanotubes and its applications. Singlewalled carbon nanotubes 205 dices determine whether a swnt will be a metal or a semiconductor. This reaction was found to be extremely efficient in producing organosoluble polymernanotube conjugates, even at relatively low reaction temperatures 60 c and short reaction times 24 h. These tubes of carbon are usually only a few nanometres wide, but they can range from less than a micrometre to several millimetres in length.
Cnts can be conjugated with various biological molecules including drugs, proteins and nucleic acid to afford biofunctionalities. Carbon nanotubes by chris scoville, robin cole, jason hogg, omar farooque, and archie russell introduction the amazing and versatile carbon chemical basis for life with an atomic number of 6, carbon is the 4th most abundant element in the universe by mass after. Introduction to the properties of carbon nanotubes january 20, 2017 by mark hughes carbon nanotubes have received a lot of press coverage in recent years. Carbon nanotubes seminar report by shuhabutariq 1si03ec109. Carbon nanotubes are typically considered as molecularscale tubes of graphitic carbon. Another reason why nanotubes have generated intense research activities from scientists of various disciplines is they. Tomorrows society will be shaped by nanotube applications, just as siliconbased technologies dominate society today. The electronic band pstructure of graphene and carbon nanotubes by asmahan anan sulaiman tiryaki supervisor prof. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Types, methods of preparation and applications parijat pandey, mandeep dahiya department of pharmaceutical sciences, maharshi dayanan d university, rohtak, har yana, india.
Some of these applications now are beginning to reach commercial maturity, with carbon nanotubes being used as probe tips for atomic force microscopes and as field. Jun 19, 2012 introduction to carbon nanotubes and their applications 1. Because biomolecules typically carry many ions, they are expected to affect cnt sensing elements and transducers more. Introduction to carbon nanotubes and their applications. Red signifies areas of high energy, while blue denotes. Nanotubes have diameter of a few nm and length up to 100m so that they form extremely thin wires.
Carbon nanotubes cnt in nanotechnology field are legendary for its strength and chemical inertness. Chapter i carbon nanotubes for antenna applications. Electrical transport in singlewall carbon nanotubes. Graphite is made up of layers of carbon atoms arranged in a hexagonal lattice, like chicken wire see. Introduction to carbon nanotube and nanofiber smart materials. Unlike the multiwalled carbon nanotubes mwnts, in singlewalled carbon nanotubes swnts there is only the tube and no graphitic layers i. A swcnt can either exhibit metallic or semiconducting properties, depending on the arrangement of constituent carbon atoms. Carbon nanotubes seminar report by shuhabutariq 1si03ec109 5 nanotubes are cylindrical fullerenes. Introduction to carbon nanotubes 9 for the two latter methods arc and laser, the carbon source is a graphite anode arc or a graphite target laser previously loaded with the catalysts. Pdf carbon nanotubes cnt in nanotechnology field are legendary for its strength and chemical inertness. Controlling the structure and properties of carbon nanotubes.
Pdf introduction to carbon nanotubes wolfgang bacsa. By chris scoville, robin cole, jason hogg, omar farooque, and archie russell. In the last lecture we started to look at bandstructure engineering and the construction of arti. Carbon nanotubes cnts have shown high performance in a wide range of applications ranging from thermal 1,2,3,4, electrical 5,6,7, mechanical 8,9 to many other 10,11,12. These are large macromolecules that are unique for their size, shape, and remarkable physical properties. Unexpectedly strong hydrophilic character of freestanding. Carbon nanotubes carbon nanotubes, long, thin cylinders of carbon, were discovered in 1991 by sumio iijima. Carbon nanotubes cnts are nanostructures derived from rolled graphene planes and possess various interesting chemical and physical properties. It is the fourth most abundant chemical element in the universe by mass, after hydrogen, helium, and oxygen. The potential use of carbon nanotubes and nanofibers as smart composite materials is discussed in this paper. Cornell university 2008 carbon nanotubes are tiny hollow cylinders, made from a single graphene sheet, that possess many amazing properties.
An overview of the properties of carbon nanotube materials is presented, and then four applications under development are briefly discussed. Recent progress in obtaining semiconducting single. Called introduction to the thermodynamics of materials, sixth edition, the 694page book was published by crc press in august. Carbon nanotubes are important because theyre small sizeagain, in some cases, down to a couple atomsmakes them a compact semiconductor that. Pdf introduction to carbon nanotubes alain peigney. It elastic energy stored at fracture should be the number of carbon bonds transversing the fracture plane, multiplied by the carbon carbon bond strength, but is it. An introduction to nanoscience and university of oxford. Carbon nanotube mechanics projects mechanical behavior of. They can be thought of as a sheet of graphite a hexagonal lattice of carbon rolled into a cylinder. Then compute the number of carbon bonds that must be broken to achieve tensile fracture of a single cnt not a multiwall. The top trace shows the dependence of the capacitance on the topgate voltage.
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