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Scanning Probe Microscopy (SPM) is a branch of microscopy that forms images of surfaces using a physical probe that scans the specimen. An image of the surface is obtained by mechanically moving the probe in a raster scan of the specimen, line by line, and recording the probe-surface interaction as a function of position.
Learn more about quantum dots from the many resources on this site, listed below. More information on Scanning probe microscopy can be found here.
SPMW A fresh look to amplitude-modulation AFM: Force minimization, interaction measurement, and the quest for high resolution
out of 5 stars
05 Jan 2007 | | Contributor(s):: Udo D. Schwarz
Frequency modulation atomic force microscopy (FM-AFM) has been able to deliver high-resolution atomic-scale images in ultrahigh vacuum for over one decade. In addition, there have been recent reports where atomic resolution has been achieved in air and liquids using FM-AFM . Achieving...
Orbital Mediated Tunneling in a New Unimolecular Rectifier
25 May 2007 | | Contributor(s):: Robert Metzger, NCN at Northwestern University
In 1997 we showed that hexadecylquinolinium tricyanoquinodimethanide is a unimolecular rectifier, by scanning tunneling microscopy and also as a Langmuir-Blodgett (LB) monolayer, sandwiched between Al electrodes. We have now seen rectification in a new molecule: this rectification can be...
SPMW AFM at Video Rate and Beyond
16 May 2007 | | Contributor(s):: Mervyn Miles
The particular advantages that atomic force microscopy (AFM) has over other types of microscopy are well-known, but it has the one major disadvantage of low imaging rates in conventional instruments in which each image requires typically a minute or more to collect. This has two major...
BNC Annual Research Symposium: Metrology and Nanomaterials Characterization
10 May 2007 | | Contributor(s):: Ron Reifenberger
This presentation is part of a collection of presentations describing the projects, people, and capabilities enhanced by research performed in the Birck Center, and a look at plans for the upcoming year.
MSE 376 Lecture 11: SPM Lithography, part 3
26 Mar 2007 |
MSE 376 Lecture 10: SPM Lithography, part 2
MSE 376 Lecture 9: SPM Lithography, part 1
Frontiers in Scanning Probe Microscopy
30 Nov 2006 |
From October 4- 6, 2006 the Birck Nanotechnology Center at Purdue University hosted a three day focused workshop on cutting edge SPM techniques that are under development throughout the world.The three day workshop featured thematically arranged invited talks. The workshop themes are broadly...
A Primer on Scanning Tunneling Microscopy (STM)
04 Apr 2006 | | Contributor(s):: Ron Reifenberger
Scanning Probe Microscopes and their remarkable ability to provide three-dimensional maps of surfaces at the nanometer length scale have arguably been the most important tool in establishing the world-wide emergence of Nanotechnology. In this talk, the fundamental ideas behind the first scanning...
Scanning Probe Microscope Piezoelectric Crystals
16 Nov 2005 |
In this resource we disassemble the piezoelectric assembly of a scanning probe microscope. At its core is a white cylinder of the piezoelectric material. If you look closely, it has a granular texture that reflects the fact that it is actually made up of many small crystals.
Scanning Probe Microscope Operation
Scanning Probe Microscopes (SPMs) include Atomic Force Microscopes (AFMs) and Scanning Tunneling Microscopes (STMs or STEMs). They are the only instruments in widespread use that can actually "see" single atoms! You can skim this resource quickly to learn the general concepts of SPMs, or you can...
Introduction to Molecular Conduction
21 Jul 2005 | | Contributor(s):: Ferdows Zahid, Magnus Paulsson, Avik Ghosh, Supriyo Datta
A scanning probe microscope brushes the tips of molecules rising up from a gold substrate. After making contact, the probe measures a very strange current-voltage relationship--linear portions separated by flat spots or sharp increases. Definitely not Ohm's law. Is the experiment correct?...
02 Apr 2005 |
Nanotechnology is not just a topic for physicists, chemists, and engineers. Laura explains the important role of biologists in this field, and shows how they may help provide clues to molecular assembly techniques.
What is a Nanometer?
Join Laura and Martin on a wild ride through the milliworld and the microworld to reach the nanoworld. Along the way, they discover how small a nanometer truly is.
Feasibility of Molecular Manufacturing
14 Mar 2005 |
Martin and Laura have an interesting debate about the feasibility of Molecular Manufacturing. Can molecular assemblers be developed to create new materials, new devices, and even macroscopic objects? Find out... If Martin ever wakes up!
Nanomanufacturing: Top-Down and Bottom-Up
Martin presents an overview of nanomanufacturing techniques, explaining the difference between top-down and bottom-up approaches.
Scanning Probe Microscopes
15 Mar 2005 |
Laura explains how scanning probe microscopes can be used to create images of small devices, molecules, and even atoms! A large-scale version of the scanning probe microscope is built out of Legos to show the basic principles.
Probing Molecular Conduction with Scanning Probe Microscopy
08 Jul 2004 |
This tutorial will provide an overview of scanning probe microscopy (SPM) andits application towards problems in molecular conduction. In an effort to communicatethe power and limitations of these instruments, the tutorial will describe designconsiderations and reveal the detailed construction...
Haptic Interfaces to Scanning Probe Microscopy
21 Apr 2004 | | Contributor(s):: Daniel Wilhelm
2003 SURI Conference Proceedings
Nanoelectronics/Mechanics With Carbon Nanotubes
26 Feb 2004 |
In this talk, I will present efforts to understand electrical/mechanical properties of carbon nanotubes (CNTs) by combining electric transport measurements and the scanning probe microscopy.