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Title: An Efficient Aniline-Based Co-Sensitizer for High Performance N3-Sensitized Solar Cells
Authors: Naik, P.
Abdellah, I.M.
Abdel-Shakour, M.
Acharaya, M.
Pilicode, N.
El-Shafei, A.
Adhikari, A.V.
Issue Date: 2018
Citation: ChemistrySelect, 2018, Vol.3, 43, pp.12297-12302
Abstract: In this work, we report a comprehensive photovoltaic investigation of a structurally simple Donor-Acceptor (D?A) configured organic dye, N,N-PABA as an active co-sensitizer in DSSCs sensitized with well-known Ru (II) based N3 dye. This effective co-sensitizer (N,N-PABA) comprises N,N-dimethylaniline system as a donor scaffold linked with 4-aminobenzoic acid as an electron withdrawing functionality. In the present study, we have demonstrated the profound effect of concentration of sensitizer, i. e. N3 based dye as well as co-sensitizer, i. e. N,N-PABA on the photovoltaic performance characteristics of solar cells. Interestingly, the best photovoltaic performance was obtained for the co-sensitized device fabricated using 0.2 mM of N,N-PABA along with 0.3 mM of N3 sensitizer, in presence of 20 mM of CDCA. It displayed power conversion efficiency (PCE) of 5.82% with JSC of 14.35, VOC of 0.626 V and FF of 64.85%. Here, the N,N-PABA effectively filled the absorption valley, avoided the dye aggregation and reduced the charge recombination in the co-sensitized devices. Thus, the results ameliorate the role of efficient co-sensitizers to yield DSSC with improved performance by the selection of a matchable co-sensitizer at an appropriate concentration. 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
URI: 10.1002/slct.201802232
Appears in Collections:1. Journal Articles

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