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 structures and (b) reflectance spectra of PTB7:PC70BM‐based organic photovoltaics with different spatial locations of Ag@SiO2. The inset shows the absorption enhancement (Δα) caused by Ag@SiO2. (c) Current density‐voltage characteristics and (d) external quantum efficiency of organic photovoltaics with type I and type II architectures. Reproduced with permission from ref. [121]; copyright 2013, American Chemical Society.
