Dual function additives: A small molecule crosslinker for enhanced efficiency and stability in organic solar cells

J. W. Rumer, R. S. Ashraf, N. D. Eisenmenger, Z. Huang, I. Meager, C. B. Nielsen, B. C. Schroeder, M. L. Chabinyc, I. McCulloch
Advanced Energy Materials, Volume 5, Issue 9, (2015)

Dual function additives: A small molecule crosslinker for enhanced efficiency and stability in organic solar cells

Keywords

Solar cells,Photovoltaic cells

Abstract

​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%.

Code

DOI: 10.1002/aenm.201401426

Sources

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