Phthalimide end-capped thienoisoindigo and diketopyrrolopyrrole as non-fullerene molecular acceptors for organic solar cells

Two acetylene-bridged molecules, built by grafting phthalimides on thienoisoindigo (TII) and diketopyrrolopyrrole (DPP) blocks, have been synthesized, characterized and evaluated as electron acceptor materials in air-processed inverted organic solar cells. Once blended with poly(3-hexylthiophene), p...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2016-01, Vol.4 (1), p.250-256
Main Authors: Josse, Pierre, Dalinot, Clement, Jiang, Yue, Dabos-Seignon, Sylvie, Roncali, Jean, Blanchard, Philippe, Cabanetos, Clement
Format: Article
Language:English
Subjects:
Acceptor materials
Chemical Sciences
Devices
Energy conversion efficiency
Grafting
Organic chemistry
Photovoltaic cells
Phthalimides
Renewable energy
Solar cells
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Summary:Two acetylene-bridged molecules, built by grafting phthalimides on thienoisoindigo (TII) and diketopyrrolopyrrole (DPP) blocks, have been synthesized, characterized and evaluated as electron acceptor materials in air-processed inverted organic solar cells. Once blended with poly(3-hexylthiophene), power conversion efficiencies (PCEs) of ca. 0.4% and 3.3% were achieved for TII and DPP based devices, respectively. To the best of our knowledge these PCEs (i) rank amongst the highest reported so far for diketopyrrolopyrrole based acceptors and (ii) make this contribution the very first example of thienoisoindigo based materials used as non-fullerene electron acceptors.
ISSN:2050-7488
2050-7496
DOI:10.1039/c5ta09171c