Adding Amorphous Content to Highly Crystalline Polymer Nanowire Solar Cells Increases Performance.
Polymer solar cells are fabricated with systematic variation of the phase purity. Photovoltaic tests demonstrate that devices with ca. 10% of mixed phases outperform pure-phase devices. Photophysical studies reveal the effects of mixed phase on charge generation and recombination. These results show a promising strategy for the optimization of organic electronic materials.
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada.
Han
H
Yan
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada.
Yin
Y
Song
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada.
George R
GR
McKeown
Department of Chemistry, Princeton University, Washington Road, Princeton, NJ, 08544, USA.
Gregory D
GD
Scholes
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada.
Dwight S
DS
Seferos
mixed phase; nanowire; polymer solar cell; polyselenophene; statistical polymer