Scalable Fabrication of Efficient NiCo2S4 Counter Electrodes for Dye-sensitized Solar Cells Using a Facile Solution Approach

Su, An-Lin; Lu, Man-Ning; Chang, Chin‐Yu; Wei, Tzu‐Chien; Lin, Jeng‐Yu

doi:10.1016/j.electacta.2016.11.118

Cited by 9 publications

(8 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the CV curves, NiCo 2 S 4 and NiCo 2 S 4 -an CEs present a similar shape with two typical pairs of redox peaks [ 16 , 21 ]. As a matter of fact, the reduction peak of the left pair is assigned to the reaction S n 2 − + e − → nS 2 − and the right one is assigned as S + 2ne − → S n 2− [ 19 , 20 , 33 ]. The role of the CE in a QDSSC is to catalyze the reduction of S n 2− to S 2− ions in the polysulfide electrolyte, so the left pair of redox peaks is directly related to the catalytic activity of CE, the positive and negative peaks correspond to the oxidation of S 2− and the reduction of Sn 2− , respectively [ 34 , 35 ].…”

Section: Resultsmentioning

confidence: 99%

Ti Porous Film-Supported NiCo2S4 Nanotubes Counter Electrode for Quantum-Dot-Sensitized Solar Cells

et al. 2018

View full text Add to dashboard Cite

In this paper, a novel Ti porous film-supported NiCo2S4 nanotube was fabricated by the acid etching and two-step hydrothermal method and then used as a counter electrode in a CdS/CdSe quantum-dot-sensitized solar cell. Measurements of the cyclic voltammetry, Tafel polarization curves, and electrochemical impedance spectroscopy of the symmetric cells revealed that compared with the conventional FTO (fluorine doped tin oxide)/Pt counter electrode, Ti porous film-supported NiCo2S4 nanotubes counter electrode exhibited greater electrocatalytic activity toward polysulfide electrolyte and lower charge-transfer resistance at the interface between electrolyte and counter electrode, which remarkably improved the fill factor, short-circuit current density, and power conversion efficiency of the quantum-dot-sensitized solar cell. Under illumination of one sun (100 mW/cm2), the quantum-dot-sensitized solar cell based on Ti porous film-supported NiCo2S4 nanotubes counter electrode achieved a power conversion efficiency of 3.14%, which is superior to the cell based on FTO/Pt counter electrode (1.3%).

show abstract

Section: Resultsmentioning

confidence: 99%

Ti Porous Film-Supported NiCo2S4 Nanotubes Counter Electrode for Quantum-Dot-Sensitized Solar Cells

et al. 2018

View full text Add to dashboard Cite

show abstract

“…They developed NiCo 2 S 4 nanoparticles with an ultrahigh specific capacitance of 1440 F g −1 at 3 A g −1 after 250 cycles. Su et al 40 . have synthesized NiCo 2 S 4 electrodes using the solvothermal method for dye-sensitized solar cell (DSC) application, demonstrated the maximum cell efficiency of 8.94% on an ITO-coated glass substrate.…”

Section: Introductionmentioning

confidence: 99%

Chemical synthesis of hierarchical NiCo2S4 nanosheets like nanostructure on flexible foil for a high performance supercapacitor

Kim

Ghodake

Maile

et al. 2017

Sci Rep

View full text Add to dashboard Cite

In this study, hierarchical interconnected nickel cobalt sulfide (NiCo2S4) nanosheets were effectively deposited on a flexible stainless steel foil by the chemical bath deposition method (CBD) for high-performance supercapacitor applications. The resulting NiCo2S4 sample was characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM), and electrochemical measurements. XRD and X-ray photoelectron spectroscopy (XPS) results confirmed the formation of the ternary NiCo2S4 sample with a pure cubic phase. FE-SEM and HR-TEM revealed that the entire foil surface was fully covered with the interconnected nanosheets like surface morphology. The NiCo2S4 nanosheets demonstrated impressive electrochemical characteristics with a specific capacitance of 1155 F g−1 at 10 mV s−1 and superior cycling stability (95% capacity after 2000 cycles). These electrochemical characteristics could be attributed to the higher active area and higher conductivity of the sample. The results demonstrated that the interconnected NiCo2S4 nanosheets are promising as electrodes for supercapacitor and energy storage applications.

show abstract

“…The increased attention on NiCoS 4 has seen several studies exploring different fabrication techniques and their efficiencies. In various works, DSSCs equipped with NiCoS4 counter electrodes have displayed efficiencies ranging from 4.5% to 7%, highlighting its potential as a viable alternative to Pt [28][29][30]. A notable method that has been previously employed is the hydrothermal method, which, while effective, has its own set of challenges and benefits [29,30].…”

Section: Introductionmentioning

confidence: 99%

“…In various works, DSSCs equipped with NiCoS4 counter electrodes have displayed efficiencies ranging from 4.5% to 7%, highlighting its potential as a viable alternative to Pt [28][29][30]. A notable method that has been previously employed is the hydrothermal method, which, while effective, has its own set of challenges and benefits [29,30]. The promise of NiCo 2 S 4 has catalyzed the development of varied fabrication techniques for counter electrodes on FTO glass substrates, each bearing its unique pros and cons concerning cost, fabrication complexity, and environmental impact: for instance, the NiCoS 4 -based electrode prepared by the sulfide-argon gas blend to deposit the NiCoS 4 for DSSCs application [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…As well as the Pt-NiCoS 4 -based counter electrode prepared by the sputtering and pyrolysis method and used as a counter electrode in DSSCs. Given various backdrops, streamlining counter electrode fabrication by utilizing simple reactants and a solitary process is vital for large scale production [26][27][28][29][30][31]. Hence, an approach that simplifies synthesis, eschewing complex chemicals and multistep procedures could offer notable benefits for directly growing NiCoS 4 on FTO glass substrate, minimizing potential film detachment issues.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nanograss-Assembled NiCo2S4 as an Efficient Platinum-Free Counter Electrode for Dye-Sensitized Solar Cell

Alsharif

2023

Nanomaterials

View full text Add to dashboard Cite

Dye-sensitized solar cells (DSSCs) are often viewed as the potential future of photovoltaic systems and have garnered significant attention in solar energy research. In this groundbreaking research, we introduced a novel solvothermal method to fabricate a unique “grass-like” pattern on fluorine-doped tin oxide glass (FTO), specifically designed for use as a counter electrode in dye-sensitized solar cell (DSSC) assemblies. Through rigorous structural and morphological evaluations, we ascertained the successful deposition of nickel cobalt sulfide (NCS) on the FTO surface, exhibiting the desired grass-like morphology. Electrocatalytic performance assessment of the developed NCS-1 showed results that intriguingly rivaled those of the acclaimed platinum catalyst, especially during the conversion of I3 to I− as observed through cyclic voltammetry. Remarkably, when integrated into a solar cell assembly, both NCS-1 and NCS-2 electrodes exhibited encouraging power conversion efficiencies of 6.60% and 6.29%, respectively. These results become particularly noteworthy when compared to the 7.19% efficiency of a conventional Pt-based electrode under similar testing conditions. Central to the performance of the NCS-1 and NCS-2 electrodes is their unique thin and sharp grass-like morphology. This structure, vividly showcased through scanning electron microscopy, provides a vast surface area and an abundance of catalytic sites, pivotal for the catalytic reactions involving the electrolytes in DSSCs. In summation, given their innovative synthesis approach, affordability, and remarkable electrocatalytic attributes, the newly developed NCS counter electrodes stand out as potent contenders in future dye-sensitized solar cell applications.

show abstract

Scalable Fabrication of Efficient NiCo2S4 Counter Electrodes for Dye-sensitized Solar Cells Using a Facile Solution Approach

Cited by 9 publications

References 54 publications

Ti Porous Film-Supported NiCo2S4 Nanotubes Counter Electrode for Quantum-Dot-Sensitized Solar Cells

Ti Porous Film-Supported NiCo2S4 Nanotubes Counter Electrode for Quantum-Dot-Sensitized Solar Cells

Chemical synthesis of hierarchical NiCo2S4 nanosheets like nanostructure on flexible foil for a high performance supercapacitor

Nanograss-Assembled NiCo2S4 as an Efficient Platinum-Free Counter Electrode for Dye-Sensitized Solar Cell

Contact Info

Product

Resources

About