Nanoscience Assoc Prof Dr Nuri ncel Department of

Nanoscience Assoc. Prof. Dr. Nuri Öncel Department of Physics and Astrophysics University of North Dakota 10/22/2009

0. 04 inch=1 mm 10/22/2009

10/22/2009

Special microscopes to see nano-world v. Electron Microscope: v. Scanning Electron Microscope v. Transmission Electron Microscope v. Etc… v. Scanning Probe Microscope: v. Scanning Tunneling Microscope v. Atomic Force Microscope v Etc… 10/22/2009

Gerd Binning Heinrich Rohrer Invented 1981 1986 10/22/2009

Tunneling 10/22/2009

When it is in action 10/22/2009 http: //www. fz-juelich. de/ibn/Charge_Transport_Through_Nanostructures/

20 μm Iphone-3 cmos 10/22/2009

DVD Before 10/22/2009 After

AFM

Au(111) 10/22/2009 www. omicron. de

Nanotechnology 10/22/2009

Moore’s Law 10/22/2009 wikipedia

Moore's Law “Integrated circuits will lead to such wonders as home computers— or at least terminals connected to a central computer —automatic controls for automobiles, and personal portable communications equipment. ” 10/22/2009 Gordon E. Moore, Electronics, 38, 8, 1965

Investing Nanotechnology ü The Federal funding for nanotechnology has increased from approximately $464 million in 2001 to nearly $1. 5 billion for the 2009 fiscal year. ü Estimated from 2005: European Union (EU) and Japan invested approximately $1. 05 billion and $950 million respectively in nanotechnology. Behind them were Korea, China and Taiwan with $300 million, $250 million and $110 million respectively invested in nanotechnology research and development. 10/22/2009 http: //www. nano. gov/

Medicine Cd. Se Quantum Dots Lymph node mapping in the mouse 10/22/2009 Nature biotechnology, 22, 93, 2004

Nano is everywhere! Refrigerator Ag nanoparticles To kill bacteria Sunscreen Zn. O or Ti. O 2 To block UV light To kill bacteria Baby milk bottle Ag particles Skis 10/22/2009 Si. O 2 To reduce stress between C fibers-lower weight http: //www. nanotechproject. org

Thank you Questions? nuri. oncel@und. edu 10/22/2009