Figure 3.
Images of PENGs made from ZnO NWs grown on (a) Au; (b) ZnO and (c) AZO seed layers.
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.