Graphene-based cathodes for liquid-junction dye sensitized solar cells: Electrocatalytic and mass transport effects

Kavan, Ladislav; Yum, Jun‐Ho; Gräetzel, Michael

doi:10.1016/j.electacta.2013.08.112

Cited by 86 publications

(78 citation statements)

References 153 publications

(282 reference statements)

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“…Ladislav et al measured the electrocatalytic activity of a carbon-based cathode and mass transport in an electrolyte solution by using electrochemical impedance spectra (EIS). Many carbon-based electrodes exhibited catalytic activity and long-term stability comparable with those of Pt [11]. Among these electrodes, GP materials are widely used because of their low charge transfer resistance, high surface-to-volume ratio, high chemical resistance, high carrier mobility, and high catalytic activity [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Investigation of low thermal reduction of graphene oxide for dye-sensitized solar cell counter electrode

Liang

Wang

2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Section: Introductionmentioning

confidence: 99%

Investigation of low thermal reduction of graphene oxide for dye-sensitized solar cell counter electrode

Liang

Wang

2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…Electrolyte facilitates the oxidation and reduction process for catalytic activity in DSSC. Counter electrode transfers electrons from the external circuit to the electrolyte and catalyses the reduction of iodide ions . Throughout the past two decades of research on DSSC, efforts have been devoted to developing efficient DSSC.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Performance of Reduced Graphene Oxide as Counter Electrode in Dye Sensitized Solar Cell Applications

Palled¹,

Sundaramoorthy²,

Chandra³

et al. 2018

Phys. Status Solidi A

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In dye sensitized solar cells (DSSC), the counter electrode (CE) plays a significant role in electro catalytic reaction in redox region to achieve maximum power conversion efficiency (PCE) of the DSSC. The graphene oxide (GO) is synthesized by Hummer's method and converted to reduced graphene oxide (RGO) by thermal method. The effect of binders such as NMP, PVP, and nafion for RGO are investigated. The field emission scanning electron microscope (FESEM) of RGO shows the fine layers like structure. The surface area of the RGO is found to be 110.16 m2 g−1 by Brunauer–Emmett–Teller (BET) method and pore volume 0.5182 cm3 g−1 of RGO by Barrett–Joyner–Halenda (BJH) method. The Raman spectra is used to analyze the structural defects and changes of GO and RGO. The crystallite size of GO is 18.6 nm, and RGO is 20.9 nm calculated from the Raman spectrum. For analyzing the electro catalytic properties of the RGO/NMP/PVP, RGO/NMP, and RGO/nafion based CE materials cyclic voltammetry is performed and its maximum current density was measured. The composition of RGO/NMP/PVP based CE exhibits better electro‐catalytic properties when compared to other RGO/NMP and RGO/nafion based counter electrodes. Maximum PCE exhibited by RGO/NMP/PVP CE based DSSC is 5.8%.

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“…[28,[57][58][59] In order to understand the extent to which the CMC binder blocks the GNP active sites and reduces the surface area, a number of different inks were produced with different GNP:CMC ratios while keeping all constituents of the ink constant. [28,[57][58][59] In order to understand the extent to which the CMC binder blocks the GNP active sites and reduces the surface area, a number of different inks were produced with different GNP:CMC ratios while keeping all constituents of the ink constant.…”

Section: Resultsmentioning

confidence: 99%

Development of Graphene Nano‐Platelet Ink for High Voltage Flexible Dye Sensitized Solar Cells with Cobalt Complex Electrolytes

et al. 2017

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Graphene nanoparticles have been subject to intensive investigation as a replacement for platinum as the catalyst in dye sensitized solar cells (DSCs), but few of these investigations examine the application for flexible cells with deposition processes suitable for industrial fabrication. This work introduces a transparent water based graphene ink that can be dried rapidly at less than 110 ºC making it particularly suitable for roll to roll deposition on plastic substrates. This ink has application as a catalyst for dye sensitized solar cells utilizing cobalt complex electrolytes with efficiency of over 6 % and a V oc of 0.89 V at 1 sun demonstrated. A flexible DSC with a printed catalyst and cobalt redox mediator is reported, with efficiency of over 6.0 % and V oc of 0.6 V at 800 lux.

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Graphene-based cathodes for liquid-junction dye sensitized solar cells: Electrocatalytic and mass transport effects

Cited by 86 publications

References 153 publications

Investigation of low thermal reduction of graphene oxide for dye-sensitized solar cell counter electrode

Investigation of low thermal reduction of graphene oxide for dye-sensitized solar cell counter electrode

Investigation on the Performance of Reduced Graphene Oxide as Counter Electrode in Dye Sensitized Solar Cell Applications

Development of Graphene Nano‐Platelet Ink for High Voltage Flexible Dye Sensitized Solar Cells with Cobalt Complex Electrolytes

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