NanoTechnology (Download Full Seminar Report)

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NANOTECHNOLOGY
what is Nanotechnology
 technology is the useage and knowledge of tools, techniques or crafts or methods
 an area of science, research and technology concerned with extremely small things
 the study of controlling of matter on atomic or molecular scale
 the future of manufacturing technology based on manipulation of materials at the nano level
Objects In Nano-Scale
DEFINITION
a process by which the ability to manipulate individual atoms and molecules is developed
Concepts of NT
Concept behind Nanotechnology
 NT is the concept of engineering functional mechanical systems at the molecular scale.
 building machines at the molecular scale designed and built atom-by-atom.
 process by which the ability to manipulate individual atoms and molecules might be developed.
History
 first found in “There's Plenty of Room at the Bottom" a talk by physicist Richard Feynman.
 NT and nanoscience started in the early 1980s with Cluster Science and Scanning Tunneling Microscope (STM).
 Fullerenes in 1985 and Carbon Nanotubes later.
 Nano crystals, quantum dots and Atomic Force Microscope in the early 90’s.
Current Research
 Study of nanomaterials.
 Bottom-up approach methods : arranging smaller components into more complex assemblies.
 Top-down approach methods : creating smaller devices by using larger ones to direct their assembly.
Applications
 Medicine
 Chemistry and environment
 Energy
 Information and communication
 Heavy Industry
 Consumer goods
Implications
 Potential risks of NT can broadly be grouped into three areas:
 Health issues - the effects of nanomaterials on human biology
 Environmental issues - the effects of nanomaterials on the environment
 Societal issues - the effects that the availability of nanotechnological devices will have on politics and human interaction
NT And Computer Science
 University of California at Santa Barbara (UCSB) researchers have developed new nanoscale structures that will help to speed up computers.
 creating more powerful microprocessors that will use less energy.
 block co-polymer lithography techniques
 Nano-RAM, novel semiconductor devices
 novel optoelectronic devices, displays (carbon nanotubes), Quantum computers