Barbiturate End-Capped Non-Fullerene Acceptors for Organic Solar Cells: Tuning Acceptor Energetics to Suppress Geminate Recombination Losses

Abstract
We report the synthesis of two barbiturate end-capped non-fullerene acceptors and demonstrate their efficient function in high voltage output organic solar cells. The acceptor with the lower LUMO level is shown to exhibit suppressed geminate recombination losses, resulting in enhanced photocurrent generation and higher overall device efficiency.

Citation
Tan C-H, Gorman J, Wadsworth A, Holliday S, Subramaniyan S, et al. (2018) Barbiturate end-capped non-fullerene acceptors for organic solar cells: tuning acceptor energetics to suppress geminate recombination losses. Chemical Communications. Available: http://dx.doi.org/10.1039/c7cc09123k.

Acknowledgements
The authors acknowledge KAUST for the funding (OSR-2015-CRG4-2572) and KAUST Center Competitive Fund. CH thanks MyBrainSc for PhD scholarship. SAJ and SS acknowledge funding under US NSF (CBET-1435912).

Publisher
Royal Society of Chemistry (RSC)

Journal
Chemical Communications

DOI
10.1039/c7cc09123k

PubMed ID
29372199

Additional Links
http://pubs.rsc.org/en/Content/ArticleLanding/2018/CC/C7CC09123K#!divAbstract

Permanent link to this record