Transmission Electron Microscope

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Transmission Electron Microscope
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TEM Image of E. Coli
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TEM Image of Mitochondria
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TEM Image of Computer Chip
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SEM Image compared to TEM Image
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Transmission Electron Microscope

• http//www.matter.org.uk/tem/
• http//em-outreach.ucsd.edu/web-course/toc.html
• http//www.amazon.com/Transmission-Electron-Micros
  copy-Textbook-Materials/dp/038776500X/refsr_1_1?i
  eUTF8sbooksqid1224191760sr8-1

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TEM Operation
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UW Eau Claires TEM
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UW Eau Claires TEM
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TEM Phosphor Screen
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TEM Control Panel
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TEM Grids
All TEMs ever done have examined only .3 mm3 of
material
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TEM Components
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TEM Sample Preparation and Theory of Operation

• Samples for TEM must be electron transparent.
  That means they must be thin enough for electrons
  to pass through.
• It is very difficult to achieve this.
• After the sample has been polished very thin an
  ion mill is used to perform the final stages.
• An ion mill uses an argon plasma to remove
  material from the sample.
• High energy argon ions strike the sample and
  atoms of the sample are knocked away.
• TEMs can be used to image atoms.
• Some scientists have combined TEM chambers with
  reactors so they can watch chemical reactions in
  progress.

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FIB Sample Preparation for TEM
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Electron Microscope Vendors

• JEOL http//www.jeol.com/
• Hitachi http//www.hitachi-hitec-uk.com/
• Zeiss www.smt.zeiss.com/nts
• FEI www.feicompany.com
• Camscan www.camscan-usa.com
• Elektronen-Optik www.eos-do.com
• Tescan www.tescan.com
• KLA/Tencor/Amray http//www.kla-tencor.com/

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Notes

• Growth of carbon nanotubes inside environmental
  TEM.