
Available For:




The TEM Plasma Gas Sample Holder integrates a sealed environmental cell, dedicated gas delivery, cathode–anode microfabricated MEMS chips, MEMS heating, high voltage electrical connections and safety features, and dedicated control hardware into a unified platform for operando plasma TEM experiments. The environmental cell is formed by a cathode chip and an anode chip separated by precision spacers, creating a controlled gas environment around the specimen that remains isolated from the microscope vacuum. When a voltage is applied between the electrodes, plasma is generated directly within the environmental cell adjacent to the electron-transparent imaging region, enabling real-time observation of plasma–material interactions at atomic resolution.
Controlled gas flow is delivered through the environmental cell at pressures up to 2 bar, while up to 1 kV electrical bias can be applied to sustain internal plasma between patterned electrodes with optimized geometries. This integrated platform enables researchers to directly correlate plasma exposure with structural, chemical, and functional evolution during plasma-assisted gas–solid reactions, catalyst activation, surface modification, and other plasma-assisted materials processes.