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System for In Situ UV-Visible Illumination of Environmental Transmission Electron Microscopy Samples

Published online by Cambridge University Press:  14 January 2013

Benjamin K. Miller  and
Peter A. Crozier
Benjamin K. Miller
Affiliation:
School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287-6106, USA
Peter A. Crozier*
Affiliation:
School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287-6106, USA
*
*Corresponding author. E-mail: crozier@asu.edu
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Abstract

A system for illuminating a sample in situ with visible and ultraviolet light inside a transmission electron microscope was devised to study photocatalysts. There are many mechanical and optical factors that must be considered when designing and building such a system. Some of the restrictions posed by the electron microscope column are significant, and care must be taken not to degrade the microscope's electron-optical performance or to unduly restrict the other capabilities of the microscope. We discuss the nature of the design considerations, as well as the practical implementation and characterization of a solution. The system that has been added to an environmental transmission electron microscope includes a high brightness broadband light source with optical filters, a fiber to guide the light to the sample, and a mechanism for precisely aligning the fiber tip.

Keywords

environmental transmission electron microscopyin situilluminationphotocatalysisvisible lightultravioletsolar energy
Type
Software, Techniques, and Equipment Development
Information
Microscopy and Microanalysis , Volume 19 , Issue 2 , April 2013 , pp. 461 - 469
Copyright
Copyright © Microscopy Society of America 2013

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