Meso-structure formation for enhanced organic photovoltaic cells.
[reaction: see text] Formation of a controlled fullerene mesophase within an organic host system has enabled us to create high-power conversion efficiency photovoltaics. This mesophase is formed using thermal gradients that provide a fluidic mobility of the fullerenes allowing for greater dispersion of nanocrystalline 1-(3-methoxycarbonyl)propyl-1-phenyl-(6,6)C61 (PCBM) within regioregular poly(3-hexylthiophene) (P3HT). From this reorganization of the component materials in the matrix the overall efficiency of the system jumps dramatically from the roughly 2.4% to 5.2%.
Reyes-Reyes
Marisol
M
Center for Nanotechnology and Molecular Materials, Department of Physics, Wake Forest University, Winston-Salem, North Carolina 27109, USA.
Kim
Kyungkon
K
Dewald
James
J
López-Sandoval
Román
R
Avadhanula
Aditya
A
Curran
Seamus
S
Carroll
David L
DL