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.
Transmission electron microscopy (TEM) images of poly-3-hexylthiophene (P3HT):6,6-phenyl-C61-butyric acid methyl ester (PCBM) a before thermal annealing, b after annealing at 150 °C for 30 min, and c after annealing at 150 °C for 2 h. Bright features correspond to PCBM, and dark features correspond to P3HT. PCBM and P3HT are clearly separated within 10 nm after thermal annealing. Reprinted with permission from Ma et al. [29], © 2005, Wiley
