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In situ Transmission Electron Microscopy Studies Enabled by Microelectromechanical System Technology

Published online by Cambridge University Press:  01 July 2005

M. Zhang ,
E.A. Olson ,
R.D. Twesten ,
J.G. Wen ,
L.H. Allen ,
I.M. Robertson  and
I. Petrov
M. Zhang
Affiliation:
Frederick Seitz Materials Research Laboratory and Department of Materials Science, University of Illinois, Urbana, Illinois 61801
E.A. Olson
Affiliation:
Frederick Seitz Materials Research Laboratory and Department of Materials Science, University of Illinois, Urbana, Illinois 61801
R.D. Twesten
Affiliation:
Frederick Seitz Materials Research Laboratory and Department of Materials Science, University of Illinois, Urbana, Illinois 61801
J.G. Wen
Affiliation:
Frederick Seitz Materials Research Laboratory and Department of Materials Science, University of Illinois, Urbana, Illinois 61801
L.H. Allen
Affiliation:
Frederick Seitz Materials Research Laboratory and Department of Materials Science, University of Illinois, Urbana, Illinois 61801
I.M. Robertson
Affiliation:
Frederick Seitz Materials Research Laboratory and Department of Materials Science, University of Illinois, Urbana, Illinois 61801
I. Petrov*
Affiliation:
Frederick Seitz Materials Research Laboratory and Department of Materials Science, University of Illinois, Urbana, Illinois 61801
*
c)Address all correspondence to this author. e-mail: [email protected]
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Abstract

We have designed and fabricated a standardized specimen holder that allows the operation of a microelectromechanical system (MEMS) device inside a transmission electron microscope (TEM). The details of the design and fabrication processes of the holder are presented. The sample loading mechanism is simple and allows reliable electrical contact to eight signal lines on the device. Using a MEMS-based, nanojoule calorimeter, we performed rapid-heating experiments on Bi nanoparticles to demonstrate the functionality of the holder. We show that the heat capacity can be measured simultaneously with TEM observations. The size-dependent melting of Bi nanoparticles was observed simultaneously by nanocalorimetry and selected area diffraction measurements. We believe this approach will open up new experimental pathways to researchers, combining the speed and resolution of transmission electron microscopy with the flexibility, precision, and compactness of MEMS-based sensors and actuators.

Keywords

CalorimetryMicroelectrical mechanical (MEMS)Transmission electron microscopy (TEM)
Type
Articles
Information
Journal of Materials Research , Volume 20 , Issue 7 , July 2005 , pp. 1802 - 1807
Copyright
Copyright © Materials Research Society 2005

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References

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