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Dual Function Additives: A Small Molecule Crosslinker for Enhanced Efficiency and Stability in Organic Solar Cells
Author(s) -
Rumer Joseph W.,
Ashraf Raja S.,
Eisenmenger Nancy D.,
Huang Zhenggang,
Meager Iain,
Nielsen Christian B.,
Schroeder Bob C.,
Chabinyc Michael L.,
McCulloch Iain
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201401426
Subject(s) - materials science , fullerene , organic solar cell , polymer , polymer solar cell , thermal stability , cathode , chemical engineering , photovoltaic system , molecule , linker , small molecule , organic chemistry , composite material , chemistry , ecology , genetics , computer science , engineering , biology , operating system
A bis‐azide‐based small molecule crosslinker is synthesized and evaluated as both a stabilizing and efficiency‐boosting additive in bulk heterojunction organic photovoltaic cells. Activated by a noninvasive and scalable solution processing technique, polymer:fullerene blends exhibit improved thermal stability with suppressed polymer skin formation at the cathode and frustrated fullerene aggregation on ageing, with initial efficiency increased from 6% to 7%.