期刊
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
卷 173, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2022.111121
关键词
Poly(aniline); Reduced graphene oxide; Surfactants; Counter electrode; Dye sensitized solar cell
In this study, a low-cost nanocomposite of PANI-rGO was used as the counter electrode (CE) in dye-sensitized solar cells (DSSCs) instead of the expensive platinum (Pt) CE. The nanocomposite CEs were prepared with different types of surfactants and characterized using various techniques. The PANI-rGO-anionic surfactant showed lower charge transfer resistance compared to other materials, resulting in a higher conversion efficiency of 7.60% in the DSSCs.
In this work, poly(aniline) (PANI)-reduced graphene Oxide (rGO) low-cost nanocomposite used for counter electrode (CE) in dye-sensitized solar cells (DSSCs) for the replacement of the high-cost platinum (Pt) CE. The nanocomposite CEs were prepared with three different types of structural determine agents (cationic, non-ionic and anionic namely CTAB, Triton-X100, SDS) in aqueous medium and characterized by HR-SEM & TEM, XRD pattern analysis, FT-IR and Raman spectral studies. Electrochemical impedance spectroscopy (EIS) studies were used to determine the PANI-rGO-anionic surfactant in lower charge transfer resistance compared with, PANI, rGO and other type surfactants used in the preparation of CEs. DSSC assembled with a N719 dye sensitized TiO2 photo-anode, Poly(ethylene oxide) (PEO), iodide/triiodide redox couple containing electrolyte and PANI-rGO-anionic surfactant CE showed a sunlight-into-electrical energy conversion efficiency of 7.60%, which is higher than that of DSSC fabricated with pure Pt (6.40%), PANI (4.81%), rGO (4.30%) and PANI-rGO-CTAB (6.26%) and PANI-rGO-Triton X 100 (5.72%).
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