Regensburg 2016 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 26: Poster session II
MM 26.17: Poster
Dienstag, 8. März 2016, 18:30–20:30, Poster B3
Fabrication and application of static liquid cells for transmission electron microscopy — •Andreas Hutzler1, Robert Branscheid2, Benjamin Butz2, Michael P. M. Jank3, Lothar Frey1,3, and Erdmann Spiecker2 — 1Chair of Electron Devices, FAU Erlangen-Nuremberg, Germany — 2Center for Nanoanalysis and Electron Microscopy, FAU Erlangen-Nuremberg, Germany — 3Fraunhofer Institute for Integrated Systems and Device Technology, Germany
In situ liquid cell transmission electron microscopy (LCTEM) is a highly attractive characterization method for nanoparticle systems, because it enables real time imaging in liquid environment under the high vacuum requirements of electron microscopy. In our approach we present the batch fabrication of custom-designed static liquid cells for conventional specimen holders adapted to the design of Zheng et al. [1]. The basic concept is to confine a fluid in a channel between two electron-transparent membranes enclosed by a silicon frame which is structured by micromachining. Experimentally we could demonstrate growth and degradation processes of Au nano-rods induced by electron beam irradiation. While further development of functionalized cells is ongoing, our aim is the study of various material processes under liquid conditions as well as the enhancement of the LCTEM methodology itself. E.g. radiation damage and resulting secondary effects have not been investigated systematically to date although they have been observed in numerous studies.
[1] H. Zheng et al., Science 2009, 324, 1309–1312