13-08-2012, 12:44 PM
Nanotechnology and the Development of Computer Circuits
Nanotechnology and the Development of Computer Circuits.ppt (Size: 1.58 MB / Downloads: 78)
What is Nanotechnology?
Nanotechnology is the creation and use of materials or devices at extremely small scales.
Tools In Nanotechnology
The main tools used in nanotechnology are three main microscopes
Transmission Electron Microscope (TEM)
Atomic Force Microscope (AFM)
Scanning Tunneling Microscope (STM)
Transmission Electron Microscope (TEM)
Uses high-energy electron beam to probe material with thickness < 100 nm.
Some electrons are absorbed or bounced off object; some pass through the object and make magnified images
Digital camera records images.
Disadvantages of Nanotechnology
Safety hazards with nanomaterials
Some studies detected possible cancer-causing properties of carbon nanotubes
Some nanomaterials bounded with other materials or components