Correlation of π-conjugated oligomer structure with film morphology and organic solar cell performance.
Journal article published in 2012 by
Roland Fitzner,
Elena Mena-Osteritz,
Amaresh Mishra 
,
Gisela Schulz,
Egon Reinold,
Matthias Weil,
Christian Körner,
Hannah Ziehlke,
Chris Elschner,
Karl Leo,
Moritz Riede,
Martin Pfeiffer,
Christian Uhrich,
Peter Bäuerle
,
Gisela Schulz,
Egon Reinold,
Matthias Weil,
Christian Körner,
Hannah Ziehlke,
Chris Elschner,
Karl Leo,
Moritz Riede,
Martin Pfeiffer,
Christian Uhrich,
Peter Bäuerle
Abstract
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.