Figure 5.
SEM images of MAPbI3 thin films (low-magnification SEM image (a) and high-magnification SEM image (b)).
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.