Increased thermal stabilization of polymer photovoltaic cells with oligomeric PCBM

Language
en
Document Type
Article
Issue Date
2018-01-17
Issue Year
2016
Authors
Ramanitra, Hasina H.
Dowland, Simon A.
Bregadiolli, Bruna A.
Salvador, Michael
Santos Silva, Hugo
Bégué, Didier
Graeff, Carlos F. O.
Peisert, Heiko
Chassé, Thomas
Rajoelson, Sambatra
Editor
Abstract

The first oligomerisation of phenyl-C61-butyric acid methyl ester (PCBM) using a facile atom transfer radical addition polymerization (ATRAP) and its exploitation for organic photovoltaic devices is described. Oligo{(phenyl-C61-butyric acid methyl ester)-alt-[1,4-bis(bromomethyl)-2,5-bis(octyloxy)benzene]} (OPCBMMB) shows opto-electronic properties equivalent to those of PCBM but has a higher glass transition temperature. When mixed with various band gap semiconducting polymers, OPCBMMB delivers performances similar to PCBM but with an enhanced stabilization of the bulk heterojunction in photovoltaic devices on plastic substrates under thermal stress, regardless of the degree of crystallinity of the polymer and without changing opto-electronic properties.

Journal Title
Journal of Materials Chemistry C
Volume
4
Issue
34
Citation
Journal of Materials Chemistry C 4.34 (2016): S. 8121-8129. <http://pubs.rsc.org/en/content/articlelanding/2016/tc/c6tc03290g>
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