Issue 22, 2018

Small molecule donors based on benzodithiophene and diketopyrrolopyrrole compatible with both fullerene and non-fullerene acceptors

Abstract

Herein, two small molecule donors, BDTTT-DPP and BDTTVT-DPP, compatible with both fullerene and non-fullerene acceptors were developed. Both molecules exhibited medium bandgaps with complementary absorption to and appropriate energy level offsets with typical acceptors like PC61BM and IDIC. The optimized devices showed the best power conversion efficiency (PCE) of 5.53% for fullerene organic solar cells and 5.48% for non-fullerene organic solar cells. Moreover, ternary devices containing blends of the small molecule donors, IDIC and PC61BM produced PCEs of 6.53% for BDTTT-DPP cells and 6.55% for BDTTVT-DPP cells, even higher than the binary ones.

Graphical abstract: Small molecule donors based on benzodithiophene and diketopyrrolopyrrole compatible with both fullerene and non-fullerene acceptors

Supplementary files

Article information

Article type
Communication
Submitted
14 fev 2018
Accepted
13 mar 2018
First published
15 mar 2018

J. Mater. Chem. C, 2018,6, 5843-5848

Small molecule donors based on benzodithiophene and diketopyrrolopyrrole compatible with both fullerene and non-fullerene acceptors

Y. Huo, J. Zhu, X. Wang, C. Yan, Y. Chai, Z. Chen, X. Zhan and H. Zhang, J. Mater. Chem. C, 2018, 6, 5843 DOI: 10.1039/C8TC00799C

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