Correlation of π-conjugated oligomer structure with film morphology and organic solar cell performance.
The novel methyl-substituted dicyanovinyl-capped quinquethiophenes 1-3 led to highly efficient organic solar cells with power conversion efficiencies of 4.8-6.9%. X-ray analysis of single crystals and evaporated neat and blend films gave insights into the packing and morphological behavior of the novel compounds that rationalized their improved photovoltaic performance.
Institut für Organische Chemie II und Neue Materialien, Universität Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany.
Roland
R
Fitzner
Elena
E
Mena-Osteritz
Amaresh
A
Mishra
Gisela
G
Schulz
Egon
E
Reinold
Matthias
M
Weil
Christian
C
Körner
Hannah
H
Ziehlke
Chris
C
Elschner
Karl
K
Leo
Moritz
M
Riede
Martin
M
Pfeiffer
Christian
C
Uhrich
Peter
P
Bäuerle