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Nanotechnology bears the promise of engineering at an atomic
scale--of assembling atoms in arrangements that are completely
unnatural, thereby creating materials with properties that have
never been seen before. This may sound like science fiction,
but it has been going on for more than 30 years, since the
invention of Molecular Beam Epitaxy (MBE). MBE provides a way
of growing a block of material one sheet of atoms at a time.
By mixing different types of atoms in various combinations,
it is possible to "tune" the properties of the resulting material.
For example, the laser diode in your CD player is probably made
from silicon. It shines a particular wavelength of light
based on the energy gap between the conduction and valence
bands in silicon. That same laser diode could be "tuned" to
emit a different wavelength by building it with a new material
engineered to have a different band gap.
MBE is just one technique for building materials on an atomic
scale. Many other techniques are also under investigation,
including dragging atoms via a Scanning Tunneling Microscope (STM)
tip, and Self-Assembled Monolayers (SAM).
Learn more about material science from the resources available
on this site, listed below.
More information on Material science can be found here.
NanoDays - NanoTrees: Making Paper Stronger than Steel
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05 May 2011 | Online Presentations | Contributor(s): Robert J. Moon
Purdue NanoDays Purdue University Office of Engagement NANOVIS Incorporated Purdue Research Park Intel Corporation nano Professor Verso Paper Corp Purdue University Discover Park Qdoba …
CHM 696 Lecture 12: Optical Properties of Metal Nanoparticles and Nanoparticle Assemblies II
05 May 2011 | Online Presentations | Contributor(s): Alexander Wei
Introduction to Birck Scanning Probe Microscopy Center
03 May 2011 | Online Presentations | Contributor(s): Xin Xu
This presentation gives an introduction to the AFM facility and AFM related research being conducted in Birck nanotechnology center (BNC), and also some useful AFM resources.
AFM Metrology of Cellulose Nanocrystals
03 May 2011 | Online Presentations | Contributor(s): Robert J. Moon, Ryan Wagner
This talk discusses the characterization of cellulose nanocrystals via atomic force microscopy.
Electronic Characterization of Materials Using Conductive AFM
03 May 2011 | Online Presentations | Contributor(s): Amir Moshar
Purdue University Discovery Park, Asylum Research
CHM 696 Lecture 11: Optical Properties of Metal Nanoparticles and Nanoparticle Assemblies I
03 May 2011 | Online Presentations | Contributor(s): Alexander Wei
Additional Tutorials on Selected Topics in Nanotechnology
29 Mar 2011 | Workshops | Contributor(s): Gerhard Klimeck, Umesh V. Waghmare, Timothy S Fisher, N. S. Vidhyadhiraja
Select tutorials in nanotechnology, a part of the 2010 NCN@Purdue Summer School: Electronics from the Bottom Up.
ME 597 Lecture 22: Frequency Modulated AFM: Experimental Details
14 Feb 2011 | Online Presentations | Contributor(s): Ron Reifenberger
MSE 405 Lecture 33: Current in Semiconductors II
29 Jan 2011 | Online Presentations | Contributor(s): Mark Hersam
MSE 405 Lecture 34: Spatially Varying Carrier Concentrations
MSE 405 Lecture 35: Final Review
MSE 405 Lecture 28: Local Periodic Potentials
MSE 405 Lecture 29: Consequences of the Band Theory
MSE 405 Lecture 30: Intrinsic Semiconductors
MSE 405 Lecture 31: Extrinsic Semiconductors
MSE 405 Lecture 32: Current in Semiconductors I
MSE 405 Lecture 21: Free Electron Theory II
MSE 405 Lecture 22: Vibrations I
MSE 405 Lecture 23: Vibrations II
MSE 405 Lecture 24: The Harmonic Crystal I
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