System for in situ UV-visible illumination of environmental transmission electron microscopy samples

Benjamin K. Miller, Peter Crozier

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)461-469
Number of pages9
JournalMicroscopy and Microanalysis
Volume19
Issue number2
DOIs
StatePublished - Apr 1 2013

Keywords

  • environmental transmission electron microscopy
  • illumination
  • in situ
  • photocatalysis
  • solar energy
  • ultraviolet
  • visible light

ASJC Scopus subject areas

  • Instrumentation

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