Parallel bulk-heterojunction solar cell by electrostatically driven phase separation.
Thermal co-evaporation of C(60)  fullerene and two merocyanine dyes affords bulk heterojunction solar cells with improved short-circuit currents and power conversion efficiencies in comparison with the respective single donor cells. These results are rationalized by the formation of three distinct subphases driven by differences in molecular shape and electrostatic interactions.
Institut für Organische Chemie, Röntgen Research Center for Complex Material Systems, Universität Würzburg, Germany.
Antti
A
Ojala
Hannah
H
Bürckstümmer
Matthias
M
Stolte
Rüdiger
R
Sens
Helmut
H
Reichelt
Peter
P
Erk
Jaehyung
J
Hwang
Dirk
D
Hertel
Klaus
K
Meerholz
Frank
F
Würthner
D000042:Absorption; D011211:Electric Power Supplies; D013057:Spectrum Analysis; D055672:Static Electricity; D013472:Sunlight