Electron Transparent Substrate

The use of inert surfaces as support films for transmission electron microscopy (TEM) requires sample transfer procedures in many cases, often irrevocably altering the sample.  Active substrates, electron transparent substrates, upon which processes can be supported eliminate sample transfer entirely.


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Dan Allred & Co. is a privately owned company based in Seattle, Washington.  This company started producing ultrathin metallic films in 2006.  The films were to be used in transmission electron microscopes, where a metallic thickness of more than a few nanometers is already so electron dense as to be nearly useless as an imaging / analytical tool.  Analytical services started in 2013.