Craphene based composites as a counter electrode for dye-sensitized solar cells

Battumur, T.; Mujawar, S.H.; Ambade, Swapnil B.; Lee, Dai Soo; Lee, Wonjee; Sukhbaatar, I.; Munkhbaatar, P.; Han, Sung‐Hwan; Lee, Soo-Hyoung

doi:10.1109/ifost.2012.6357574

Cited by 2 publications

(1 citation statement)

References 37 publications

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“…Ali et al modified the surface of carbon nanotubes with cobalt selenide nanoparticles, and achieved enhanced photoelectric conversion efficiency (6.42%) as compared to conventional platinum-based counter electrodes (5.42%) [ 16 ]. Battumur et al incorporated a carbon nanotube-graphene composite as a platinum alternative, and gained improved photovoltaic performance [ 17 ]. Similarly, when a TiN composite with conductive carbon black was used as a counter electrode in DSSCs, high catalytic reduction of the electrolyte was achieved in comparison to platinum [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Biomass-Derived Nitrogen-Doped Carbon Aerogel Counter Electrodes for Dye Sensitized Solar Cells

et al. 2018

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Dye sensitized solar cells have emerged as an attractive alternative to conventional solar cells due to their easy processing and the abundance and low cost of their materials. However, the counter electrode in these cells employs platinum which significantly impacts their cost. Here, we report biomass-derived, nitrogen-doped carbon aerogel as an effective alternative to conventional platinum-based counter electrodes for dye sensitized solar cells. A stable suspension of biomass-derived, nitrogen-doped carbon aerogel was prepared in DMF by using oleylamine as a binder. The nitrogen-doped carbon aerogel electrode was annealed at different temperatures, and its impact on photovoltaic performance is investigated. I-V measurements confirm that the annealing temperature substantially enhances the photovoltaic parameters of these devices; these enhancements are linked to the removal of the organic binders. Electrochemical impedance spectra of the counter electrodes confirm that removal of oleylamine in nitrogen-doped carbon aerogels reduces the series resistance of the resulting electrodes. The power conversion efficiency of the solar cells from optimized nitrogen-doped carbon aerogel exhibited comparable efficiency to that of a cell fabricated using a platinum-based counter electrode. This study demonstrates the potential of biomass-derived carbon aerogels as a cheap and sustainable replacement of platinum in DSSCs.

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Section: Introductionmentioning

confidence: 99%

Biomass-Derived Nitrogen-Doped Carbon Aerogel Counter Electrodes for Dye Sensitized Solar Cells

et al. 2018

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Lithium-functionalized graphene oxide with a low load of Pt as an efficient counter electrode for dye-sensitized solar cells

Mohammadnejad,

Mohammadi,

Ghartavol

et al. 2023

J Appl Electrochem

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Low-cost materials with excellent chemical stability, high conductivity, and catalytic properties have attracted much attention as an alternative to conventional Pt counter electrodes in dye-sensitized solar cells (DSSCs). Herein, graphene oxide (GO) sheets were successfully synthesized via the improved Hummers' method, functionalized with lithium and characterized by SEM, AFM, XRD, Raman, UV-Vis, and FTIR techniques. The impact of GO thickness, heat treatment temperature, and hybridization with Pt particles on photovoltaic performance of the counter electrodes (CEs) were studied. A solar e ciency of 2.47% and 2.94% was achieved for the pristine GO and Li-functionalized GO electrodes, respectively under an optimized condition. A hybrid structure of GO or Li-functionalized GO lms coated with an ultra-thin Pt lm (i.e., GO-Pt or LiGO-Pt CEs) led to a remarkable e ciency of 7.07% and 8.87%, respectively. Such superior photovoltaic performance of LiGO-Pt CE indicated an increase of 61% in cell e ciency compared to the conventional Pt counter electrodes. The design of GO-based counter electrodes decorated with Pt deposition and Li functionalization will open a new concept for improvement of power conversion e ciency of DSSCs.

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Craphene based composites as a counter electrode for dye-sensitized solar cells

Cited by 2 publications

References 37 publications

Biomass-Derived Nitrogen-Doped Carbon Aerogel Counter Electrodes for Dye Sensitized Solar Cells

Biomass-Derived Nitrogen-Doped Carbon Aerogel Counter Electrodes for Dye Sensitized Solar Cells

Lithium-functionalized graphene oxide with a low load of Pt as an efficient counter electrode for dye-sensitized solar cells

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