Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The ball-and-stick model of armchair phosphorene nanoribbon: (a) is top-view, and (b) is side-view. The zigzag counterpart is plotted in (c) and (d), respectively. The unit cell is outlined by dash lines and the arrow indicates the translation direction of nanoribbons.
