In-Situ Liquid-Cell TEM


Prof. Dr. Sascha Schäfer

sasaecha.scheaaefz6yfser(agwvcht) (saschwm8ga.schaefer@uol.deg/qg)
Raum W01A 1-105
Telefon +49-441-798-3536

In-Situ Liquid-Cell TEM

Transmission electron microscopy (TEM) was traditionally limited to the investigation of solid-state thin-film samples. Recent instrumental developments in advanced TEM sample holders now enable the in-situ TEM imaging of ultrathin liquid layers with a broad range of applications in (photo-)electrochemistry, photochemistry and biomedical imaging [1].

In such in-situ sample holders, the liquid sample is contained between two electron transparent windows which also host further electrodes for electrochemical biasing or temperature control.

In our work, we utilize a commercial sample holder fabricated by DENSsolution (model: stream), which incorporates microfluid channels for a reproducible and controllable flow of the investigated liquids.

Electrochemical and photoelectrochemical investigations are conducted collaboratively with the group of Prof. Dr. G. Wittstock (Univ. Oldenburg).



Figure 1: Liquid cell holder



SEM image of bottom chip for liquid cell holder.

Figure 2: SEM image of a bottom chip for liquid cell holder.

[1] H.-G. Liao and H. Zheng,  Liquid Cell Transmission Electron Microscopy ,  Annu. Rev. Phys. Chem 2016, 67 719-47

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