slide1 n.
Download
Skip this Video
Download Presentation
STM

Loading in 2 Seconds...

play fullscreen
1 / 4

STM - PowerPoint PPT Presentation


  • 87 Views
  • Uploaded on

STM. Scanning Tunneling Microscope Viewing Scans and Questions (Activity) Developed by Malory M. Peterson, Summer 2006 Nanotechnology Grant National Science Foundation #0532516. Becoming Familiar With the STM. Start by checking out the STM and identifying the different parts of the machine.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'STM' - kylynn-davis


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

STM

Scanning Tunneling Microscope

Viewing Scans and Questions (Activity)

Developed by Malory M. Peterson, Summer 2006 Nanotechnology Grant

National Science Foundation #0532516

becoming familiar with the stm
Becoming Familiar With the STM
  • Start by checking out the STM and identifying the different parts of the machine.
    • Tip
    • Controller
    • Sample
    • Sample Holder
  • On your worksheet,

Draw a schematic of how the

STM works. Make sure you

understand your schematic.

scans
Scans
  • Look at the large scans (400 nm – 500 nm) and locate level areas.
  • Zoom in
  • Review the smaller scan area (2 nm – 4 nm) and draw a picture on your worksheet of what the scan looks like.
  • Identify a molecule, if you can, and estimate its size.
  • Do not forget to label the axis in your drawing.
additional questions
Additional Questions
  • What does nanotechnology mean?
  • What is the purpose of the air bags and sand on the STM cart?
  • Remembering that heat makes particles excited; would it be easier or harder to scan at higher temperatures? Why?
  • Why does the STM tip have to be as sharp as possible (ideally, the size of a single atom)?
  • What are two ways we “see” the layers in the HOPG.
  • What do the letters in STM stand for?
  • How does “indirect observation” relate to the STM?