Fig. 1: TEM lamella of a SOFC mounted on a MEMS with heating and electrical biasing/monitoring capabilities.
From: Operando analysis of a solid oxide fuel cell by environmental transmission electron microscopy

a Scanning electron microscopy (SEM) image of a MEMS chip for operando transmission electron microscopy (TEM). The anode and cathode of the SOFC lamella are electrically connected to the biasing electrodes of the MEMS. b STEM ADF micrograph of the electrically connected SOFC sample, and c corresponding STEM EDX maps of the K edges of the main elements present in the initial SOFC device acquired from the dashed area shown in b.