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Cross-conjugated BODIPY pigment for highly efficient dye sensitized solar cells

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Abstract

In this study, we report a new BODIPY-based design, called the cross-conjugated design, that takes advantage of the α- and β-position functionalization of the BODIPY core. After synthesis, and compared to a more standard BODIPY dye, using similar functional groups and based on a horizontal design, called h-BOD, the new cross-conjugated BODIPY dye (cc-BOD) exhibits clearly the highest conjugation and light harvesting properties. Consequently, when used as photosensitizers in dye-sensitized solar cells (DSSCs), an impressive improvement of power conversion efficiency (PCE) has been observed, with a PCE of 6.02% with broad incident photon to current conversion efficiency (IPCE) for cc-BOD, compared to only 3.7% for h-BOD. Moreover, by co-sensitizing a DSSC with the two complementary absorbing dyes h-BOD and cc-BOD, we further improved the PCE up to 6.2%.

Graphical abstract: Cross-conjugated BODIPY pigment for highly efficient dye sensitized solar cells

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Supplementary files

Article information


Submitted
13 Nov 2019
Accepted
12 Jan 2020
First published
14 Jan 2020

Sustainable Energy Fuels, 2020, Advance Article
Article type
Paper

Cross-conjugated BODIPY pigment for highly efficient dye sensitized solar cells

M. F. Shah, A. Mirloup, T. H. Chowdhury, A. Sutter, A. S. Hanbazazah, A. Ahmed, J. Lee, M. Abdel-Shakour, N. Leclerc, R. Kaneko and A. Islam, Sustainable Energy Fuels, 2020, Advance Article , DOI: 10.1039/C9SE01090D

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