Enhanced properties of low-cost carbon black-graphite counter electrode in DSSC by incorporating binders

Narudin, Nurnajaa; Ekanayake, Piyasiri; Soon, Ying Woan; Nakajima, Hideki; Lim, Chee Ming

doi:10.1016/j.solener.2021.06.070

Cited by 30 publications

(6 citation statements)

References 37 publications

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“…This implies that the Ti in Gr/CB and metal-Gr/CB is predominantly in the Ti 4+ oxidation state. These results also indicate that no Ti 3+ or Ti 2+ ions, which are expected to act as trap sites, are present in the lattice [ 40 ]. The XPS spectra shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Influence of metal salts (Al, Ca, and Mg) on the work function and hole extraction at carbon counter electrodes in perovskite solar cells

Don

Ekanayake

Jennings

et al. 2023

Heliyon

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Section: Resultsmentioning

confidence: 99%

Influence of metal salts (Al, Ca, and Mg) on the work function and hole extraction at carbon counter electrodes in perovskite solar cells

Don

Ekanayake

Jennings

et al. 2023

Heliyon

Self Cite

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“…To achieve these vital properties, a binder is introduced to not only improve the mechanical properties of films but also to prevent cracking. 18 The effect of various binders, both organic and inorganic ones, including phenolic resin. 19 poly(vinylidene fluoride), 20 poly(3,4-ethylene 5 dioxythiophene), polyaniline, polypyrrole, 21 sulfosuccinic acid, 22 TiO 2 , 23 ZrO 2 , 17 and on carbon electrodes has been studied in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…Maintaining good adhesion and a proper interparticle connection between carbon materials is also mandatory. To achieve these vital properties, a binder is introduced to not only improve the mechanical properties of films but also to prevent cracking 18 . The effect of various binders, both organic and inorganic ones, including phenolic resin 19 .…”

Section: Introductionmentioning

confidence: 99%

The effect of foamed cement nanocomposite as counter electrode on the performance of dye‐sensitized solar cell

Falahdoost Moghadam,

Ahmadi,

Abdolahzadeh Ziabari

et al. 2023

Int J Applied Ceramic Tech

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Improper interparticle connection between carbon‐based materials, poor interface bonding between the carbon counter electrodes (CEs) and substrate, and low surface area are the main limitations of carbon‐based CEs in dye‐sensitized solar cells. In this study, we utilized foamed cement and binder for adherence and surface area improvement in carbon‐based CEs, such as graphite, multi‐walled carbon nanotubes, and carbon black (CB). The results revealed that incorporating foamed cement into carbon materials improved the resistance, short‐circuit current density, fill factor, and power conversion efficiency of the device. The porous cement/CB nanocomposite CE with a photoconversion efficiency of 5.51% exhibited the best photovoltaic performance. Moreover, this nanocomposite electrode showed an enhancement catalytic activity by high current density in cyclic voltammogram, low charge transfer resistance ) in electrochemical impedance spectroscopy, and high exchange current density in Tafel measurements compared to other electrodes. The porosity of foamed cement has been found to be the main cause of its superior photovoltaic performance, which expands the contact area with the electrode and enables rich ion transport. Additionally, the enhanced performance was due to strong bonding, crack‐free deposited films, superior conductivity, and high catalytic activity.

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“…Graphite composite-based counter electrode has good resistance to corrosion, low cost, and easy fabrication. Therefore, it can enhance the photovoltaic performance [30]- [33]. Graphene-based materials also can enhance DSSC performance due to the improvement of hole transport for an optimum concentration in the I -/I 3- [34]- [36].…”

Section: Introductionmentioning

confidence: 99%

Ionic Liquids Based Cocktails as a Composite Redox Electrolyte for Natural Dye-Sensitized Solar Cells

Mudzakir¹,

Nandiyanto²,

Munawaroh³

et al. 2022

Int. J. Adv. Sci. Eng. Inf. Technol.

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Fatty-imidazolinium electrolytes, waste graphite dispersed composite electrolytes like cocktails (1,3-methyl octyl-1,2,3benzotiazolium acetate-cis-oleyl-imidazolinium iodide), and graphite exfoliation using cis-oleyl-imidazolinium acetate have been studied to enhance the efficiency of a newly developing dye-sensitized solar cells (DSSCs). The DSSCs were fabricated in a sandwich structure and characterized using Solar Simulator. The graphite exfoliation was conducted by sonication and microwave energy, as well as the electrochemical method. Cis-oleyl-imidazolinium iodide efficiency (0.53%) was highest than stearyl-imidazolinium iodide and palmityl-imidazolinium iodide because cis-oleyl-imidazolinium iodide has a double bond and the longest alkyl chain which triggered a self-assembly structure formation and increased the rate of I -/I 3transport in cells. Then, the efficiency of DSSCs-based composite electrolytes was in the range of 0.020-0.203%. Dispersion of 0.05% of the graphite results in efficiency enhancement of about 100%, but the greater fraction (0.10%) of the graphite causes a poor performance (lower efficiency), possibly due to interference of the internal electron transportation routes in the DSSC by insoluble graphite. After exfoliation, the conductivity of synthetic graphite (11.58 x 10 -1 S/cm), new battery graphite (9.32 x 10 -1 S/cm), and battery waste graphite (7.96 x 10 -1 S/cm) were increased respectively 10 times, 2 times, and 4 times from the graphite before exfoliation due to changes in crystallinity, the distance between layers, crystal size, formation of multilayer graphene, and the occurrence of π to π* transition. This enhancement of solar conversion efficiency can give a new contribution to the development of DSSC.

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Enhanced properties of low-cost carbon black-graphite counter electrode in DSSC by incorporating binders

Cited by 30 publications

References 37 publications

Influence of metal salts (Al, Ca, and Mg) on the work function and hole extraction at carbon counter electrodes in perovskite solar cells

Influence of metal salts (Al, Ca, and Mg) on the work function and hole extraction at carbon counter electrodes in perovskite solar cells

The effect of foamed cement nanocomposite as counter electrode on the performance of dye‐sensitized solar cell

Ionic Liquids Based Cocktails as a Composite Redox Electrolyte for Natural Dye-Sensitized Solar Cells

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