Nanotechnology finalyear

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this is my final year seminar topic

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Nanotechnology finalyear

  1. 1. SAPTHAGIRI COLLEGE OF ENGINEERING (Affiliated to Visvesvaraya Technological University, Belgaum)DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING TECHNICAL SEMINAR On NANOTECHNOLOGY Submitted by: Academic Guide:Amandeep Singh Mr .RAVI SHANKAR (1SG09EC004) Associate Prof. Dept of E&CE SCE, Bangalore Sapthagiri College of Engineering 1
  2. 2. CONTENTS• INTRODUCTION• EVOLUTION• TECHNICAL FEASIBILITY• APPROACHES IN NANOTECHNOLOGY• APPLICATIONS• MERITS AND DEMERITS• CONCLUSION AND FUTURE SCOPE• REFRENCES Sapthagiri College of Engineering 2
  3. 3. INTRODUCTION• Nanotechnology literally means any technology performed on a nanoscale that has applications in the real world.• Switching devices of nanometer (below 100nm, typically 10nm) dimensions define nanotechnology. Sapthagiri College of Engineering 3
  4. 4. INTRODUCTION• Nanotechnology is the creation of functional materials, devices, and systems through control of matter on an atomic or molecular scale.• 1 nanometer = 0.000000001 meter Sapthagiri College of Engineering 4
  5. 5. EVOLUTION• Dr. K. Eric Drexler is the father of Nanotechnology• The term "nanotechnology" was defined by Tokyo Science University professor Norio Taniguchi in a 1974 technical paper.• Reason for evolution was due to failure of conventional microscopy technique in finding the image of atoms.• So in 1980s IBM introduced two new techniques for finding image of atoms. Sapthagiri College of Engineering 5
  6. 6. TECHNICAL FEASIBILITY• Less Cost• Less Power requirement• Portability• Computers billions of times faster• Reduced heat• Fabrication with high Precision and high Purity• Faster Devices Sapthagiri College of Engineering 6
  7. 7. APPROACHES IN NANOTECHNOLOGY• Bottom up• Top down Sapthagiri College of Engineering 7
  8. 8. APPLICATIONS• Electronics (Nanotronics)• Computing and Processing (Nano Computing)• Robotics• Medicine and related fields (DNA/Cell repair bots) Sapthagiri College of Engineering 8
  9. 9. MECHANIZATIONCarbon Nanotubes• Carbon Nanotubes are allotropes of carbon with a cylindrical nanostructure.• In the 1970s,a preparation of the planned carbon filaments was completed by Morinobu Endo.• These are cylindrical molecules of about 1nm diameter & 1-100 micron consisting of only carbon Sapthagiri College of Engineering 9
  10. 10. MECHANIZATIONStructure of Carbon Nanotubes:These NanoTubes are the Strongest Fibers known. A singleperfect NanoTube is about 10 to 100 times stronger than Steel perunit weight. Sapthagiri College of Engineering 10
  11. 11. MECHANIZATIONProperties of Carbon Nanotubes: • Size • Density • Current carrying capacity • Resilience • Strength • Kinetic • Electrical • Thermal • Defects Sapthagiri College of Engineering 11
  12. 12. ELECTRONICS (NANOTRONICS)1.Nano tubes in making of transistors: D ~ 1 nm Sapthagiri College of Engineering 12
  13. 13. NANOTRANSISTORSSmallest Bipolar Transistor has been built with Nano Wires Sapthagiri College of Engineering 13
  14. 14. ROBOTICS• Robots of the nano size can be implemented using Nanotechnology• Main use of such a smaller robots in the field of medical sciences• They can be inserted into our body through capsules Sapthagiri College of Engineering 14
  15. 15. MERITS• Reduced heat• Reduced size• Faster Devices• Less Cost• Less Power requirement• Portability Sapthagiri College of Engineering 15
  16. 16. DEMERITSNanoparticles may enter cells – They may present on the skin – When they penetrate in to the skin they may damage the cells in the body Sapthagiri College of Engineering 16
  17. 17. CONCLUSION AND FUTURE SCOPE CONCLUSIONNanotechnology, being an emerging field today, playsvery vital role in each and every field. This area includesamazing applications in Medical, Robotics, Industrialand Consumer applications. This also shows itsusefulness in Tissue Engineering and acts as a solutionfor medical problems. Nanotechnology has wideapplications in the field of industries so that size ofmachines and efficiency can be greatly reduced. Thusthrough this nanotechnology in various fields we gain a lotand it is the friend of the whole world. Sapthagiri College of Engineering 17
  18. 18. CONCLUSION AND FUTURE SCOPEFUTURE SCOPEExamples of Future Use of NT  Electronic Paper  Nokia Morph  Contact Lens Sapthagiri College of Engineering 18
  19. 19. CONCLUSION AND FUTURE SCOPEFUTURE SCOPEExamples of Future Use of NT Nanoguitar – IBM made theNanoguiar playable with a focusedlaser beam. Nanocloths Sapthagiri College of Engineering 19
  20. 20. LITERATURE SURVEY Real Life Applications Of Nanotechnology In Electronics and Mechanical EngineeringDr.N.V.Srinivasulu , Dr. P.Giridhar Reddy, Dr. P.Narahari Sastry (National Congress onCommunications and Computer Aided Electronic Systems (CCAES 2012) ) About Paper1. A nanometer is one billionth of a meter, roughly the width of three or four atoms. The average human hair is about 25,000 nanometers wide.2. Nanotechnology is receiving a lot of attention from companies, universities and governments. This paper will outline areas in Nanotechnology with specific impact on semiconductors. The collection of synthesis techniques collectively known as Nanotechnology presents many opportunities to reshape the electronics industry from top to bottom. Sapthagiri College of Engineering 20
  21. 21. REFRENCES• Real Life Applications Of Nanotechnology In Electronics and Mechanical Engineering Dr.N.V.Srinivasulu , Dr. P.Giridhar Reddy, Dr. P.Narahari Sastry (National Congress on Communications and Computer Aided Electronic Systems (CCAES 2012) )• Morph: Nokia’s Nanotechnology Concept Phone http://tini.us/morph• Wikipedia NT Portal http://tini.us/nano• Image Credits http://sxc.hu/• http://www.nanozine.com• www.research.ibm.com/atomic/nano• http://www.utwente.nl/organization/stories/muziek-maken-op-de- micrometer Sapthagiri College of Engineering 21
  22. 22. Sapthagiri College of Engineering 22

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