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.
A device structure of perovskite solar cells using a TiO2-based scaffold that was deposited on a transparent conductive electrode (FTO). ETL, HTL, and CE denote electron-transport layer, hole-transport layer, and counter electrode (Au), respectively.
