4.8 Article

A-D-A-D-A-Type Oligothiophenes for Vacuum-Deposited Organic Solar Cells

Journal

ORGANIC LETTERS
Volume 13, Issue 1, Pages 90-93

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol102603n

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Funding

  1. German Ministry of Education and Research (BMBF)

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Novel A-D-A-D-A-type oligothiophenes incorporating electron-withdrawing benzo[c][1,2,5]thiadiazole (BTDA) as core and trifluoroacetyl (TFA) as terminal acceptor groups have been developed. Vacuum-processed planar heterojunction organic solar cells incorporating these new oligomers as donor and C-60 as acceptor showed very high open circuit voltages up to 1.17 V, resulting in power conversion efficiencies of 1.56% under AM1.5G conditions.

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