Self-Assembled Nanochamber Arrays for in-situ TEM Observation of Liquid-Phase Samples

This work presents a highly-ordered array of nanoscale chambers, capable of encapsulating liquid samples for TEM (transmission electron microscopy) imaging. The present nanochambers are formed with two layers of free-standing graphene and self-assembled nanopores in an AAO (anodic aluminum oxide) membrane, which improve a transparency for electron beam and uniformities in chamber sizes/distributions, respectively. We envision that the present work will enable us to efficiently observe nanoscale processes in liquid with high-resolution TEM.