Investigations using TEM place special demands on the samples. On the one hand, they must be electron-transparent, i.e. very thin, and on the other hand, they must be dry, vacuum-stable and not change under electron bombardment.
Depending on the material and the task, the maximum sample thicknesses can vary, but should not be significantly thicker than 100 nm in order to obtain good test results.
For atomic resolution, the sample thicknesses should be less than 20 nm.
suitable for the following research question:
Requirements for the sample:
to be considered:
Suitable for the following problem:
to be noted: