Different forms of nanowires. (IMAGE) Tokyo Metropolitan University Caption (left) (a) Illustration of different forms of TMC assembled on the substrates. Scanning transmission electron microscopy images of the cross-section of (b) a monolayer of nanowires, (c) a bilayer of nanowires, and (d) transmission electron microscopy image of 3D bundles. Reprinted with permission from Ref. 1 Credit American Chemical Society (ACS) Usage Restrictions Copyright 2020 American Chemical Society (ACS); further permissions related to the material excerpted should be directed to the ACS. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.