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Fabrication of different donors substituted dihydropyrrolo[3,4-c]pyrrole-1,4-dione bridge based D-π-A sensitizers for DSSCs: Influence of CDCA co-absorbent

Abstract

The effect of co-absorbance on the performance of DSSC devices with a new design of dimer sensitizers possess 2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (DPP) bridge and various donors groups (carbazole, diphenyl amine, indole) are reported in the present work. Photovoltaic properties were studied by using and without using co absorbent (CDCA = Chenodeoxycholic acid) applying these sensitizers. The co-absorbent had a significant effect on the Jsc, Voc and efficiency. Without incorporation of co-absorbent, higher efficiency around 4.40% is exhibited (Jsc = 9.91 mA/cm2 and Voc = 0.678 V) in R3 device, while after adding co-absorbent, we have achieved efficiency around 4.44 % (Jsc = 10.3 mA/cm2 and Voc = 0.693 V). The chemical structure optimization and energy levels calculation of various donor moieties substituted DPP bridge based sensitizers was carried out by density functional theory (DFT). Co-absorbent based DSSCs were also characterised by impedance spectroscopy and incident photo to current conversion efficiency.

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Publication details

The article was received on 20 Feb 2018, accepted on 04 Jun 2018 and first published on 05 Jun 2018


Article type: Paper
DOI: 10.1039/C8NJ00847G
Citation: New J. Chem., 2018, Accepted Manuscript
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    Fabrication of different donors substituted dihydropyrrolo[3,4-c]pyrrole-1,4-dione bridge based D-π-A sensitizers for DSSCs: Influence of CDCA co-absorbent

    R. L. Vekariya, A. Dhar, S. K. Nadavala and M. asif, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ00847G

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