Characteristics of dye-sensitized solar cells with surface-modified multi-walled carbon nanotubes as counter electrodes

Gong, Hee Hyun; Park, Jun-Young; Hong, Sung Chul

doi:10.1007/s10853-012-6813-4

Cited by 15 publications

(2 citation statements)

References 36 publications

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“…Generally speaking, the methods by which MWCNT-based electrodes are fabricated as CEs for DSSCs involve either transferring the as grown MWCNTs onto FTO, ,,− or applying a solution of MWCNTs onto FTO by spincasting or spraying. , However, these different methods result in weakly adherent MWCNT films on FTO. In order to enhance adhesion, different research groups apply the MWCNTs as a paste that contains a binder followed by a sintering process at high temperatures (more than 300 °C). − We started by optimizing an MWCNT paste that could be easily used to fabricate reproducible films with good adherence to FTO and avoiding the use of high temperatures. The latter characteristic is of high importance to the DSSC industry especially for the production of flexible-type DSSCs’, such as in the case of polyethylene naphthalate (PEN) or polyethylene terephthalate (PET) based electrodes. , The optimized paste consisted of acetylene black, PVDF, MWCNT-COOH in NMP with a mass ratio of 1:1:8:80.…”

Section: Results and Discussionmentioning

confidence: 99%

Universal Low-Temperature MWCNT-COOH-Based Counter Electrode and a New Thiolate/Disulfide Electrolyte System for Dye-Sensitized Solar Cells

Hilmi

Shoker

Ghaddar

2014

ACS Appl. Mater. Interfaces

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A new thiolate/disulfide organic-based electrolyte system composed of the tetrabutylammonium salt of 2-methyl-5-trifluoromethyl-2H-[1,2,4]triazole-3-thiol (S(-)) and its oxidized form 3,3'-dithiobis(2-methyl-5-trifluoromethyl-2H-[1,2,4]triazole) (DS) has been formulated and used in dye-sensitized solar cells (DSSCs). The electrocatalytic activity of different counter electrodes (CEs) has been evaluated by means of measuring J-V curves, cyclic voltammetry, Tafel plots, and electrochemical impedance spectroscopy. A stable and low-temperature CE based on acid-functionalized multiwalled carbon nanotubes (MWCNT-COOH) was investigated with our S(-)/DS, I(-)/I3(-), T(-)/T2, and Co(II/III)-based electrolyte systems. The proposed CE showed superb electrocatalytic activity toward the regeneration of the different electrolytes. In addition, good stability of solar cell devices based on the reported electrolyte and CE was shown.

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Section: Results and Discussionmentioning

confidence: 99%

Universal Low-Temperature MWCNT-COOH-Based Counter Electrode and a New Thiolate/Disulfide Electrolyte System for Dye-Sensitized Solar Cells

Hilmi

Shoker

Ghaddar

2014

ACS Appl. Mater. Interfaces

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“…Carbon-based materials [8][9][10], metal sulfides [11][12][13][14][15], metal nitrides [16,17], and conducting polymers have been attempted to replace Pt catalyst in the DSSC [18][19][20][21][22]. Among them, the polypyrrole (PPy) thin film has been considered as one of the most promising CE materials due to its low cost and highly catalytic activity in the DSSC [23,24].…”

Section: Introductionmentioning

confidence: 99%

Honeycomb-like polypyrrole/multi-wall carbon nanotube films as an effective counter electrode in bifacial dye-sensitized solar cells

Xiao

Han

et al. 2017

J Mater Sci

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Honeycomb-like polypyrrole/multi-wall carbon nanotube (PPy/MWCNT) film demonstrates as an efficient and semitransparent counter electrode (CE) in bifacial dye-sensitized solar cell (DSSC), which is first fabricated on fluorinedoped tin oxide glass by a facile method using a sacrificial template of poly(-methyl methacrylate) (PMMA). The results from ultraviolet-visible spectrophotometer and cyclic voltammetry measurements testify that the honeycomb-like PPy/MWCNT film possesses high transparency for the backside illumination and wonderful electrocatalytic activity for the reduction of triiodide (I 3 -) to iodide (I -) in the bifacial DSSC. Electrochemical impedance spectroscopy results indicate that the honeycomb-like nanostructure combining with the MWCNT decreases the resistance of the PPy/MWCNT film for the transfer of electrons from the external circuit back to the redox electrolyte. The bifacial DSSC based on the honeycomb-like PPy/MWCNT CE achieves 7.07 and 4.11% of the front and rear efficiencies, respectively, which are higher than those of the bifacial DSSC based on the flat PPy CE (5.78 and 3.07%, respectively).

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Carbon Nanotubes for Dye-Sensitized Solar Cells

Batmunkh

Biggs

Shapter

2015

Small

135

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As one type of emerging photovoltaic cell, dye-sensitized solar cells (DSSCs) are an attractive potential source of renewable energy due to their eco-friendliness, ease of fabrication, and cost effectiveness. However, in DSSCs, the rarity and high cost of some electrode materials (transparent conducting oxide and platinum) and the inefficient performance caused by slow electron transport, poor light-harvesting efficiency, and significant charge recombination are critical issues. Recent research has shown that carbon nanotubes (CNTs) are promising candidates to overcome these issues due to their unique electrical, optical, chemical, physical, as well as catalytic properties. This article provides a comprehensive review of the research that has focused on the application of CNTs and their hybrids in transparent conducting electrodes (TCEs), in semiconducting layers, and in counter electrodes of DSSCs. At the end of this review, some important research directions for the future use of CNTs in DSSCs are also provided.

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Characteristics of dye-sensitized solar cells with surface-modified multi-walled carbon nanotubes as counter electrodes

Cited by 15 publications

References 36 publications

Universal Low-Temperature MWCNT-COOH-Based Counter Electrode and a New Thiolate/Disulfide Electrolyte System for Dye-Sensitized Solar Cells

Universal Low-Temperature MWCNT-COOH-Based Counter Electrode and a New Thiolate/Disulfide Electrolyte System for Dye-Sensitized Solar Cells

Honeycomb-like polypyrrole/multi-wall carbon nanotube films as an effective counter electrode in bifacial dye-sensitized solar cells

Carbon Nanotubes for Dye-Sensitized Solar Cells

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