Electrospraying-assisted rapid dye molecule uptake on the surfaces of TiO2 nanoparticles for speeding up dye-sensitized solar cell fabrication

Luo, Xiuting; Kim, Ji Hoon; Ahn, Ji Young; Lee, Dong−Yun; Kim, Jong Man; Lee, Dong Geun; Kim, Sung Hyun

doi:10.1016/j.solmat.2015.09.042

Cited by 9 publications

(3 citation statements)

References 25 publications

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“…However, dye leaching from the particles was not observed. In ethanol, porous TiO 2 nanoparticles absorb dye molecules, and the PFOTES molecules covalently bond to the surface of TiO 2 nanoparticles. , Thus, PFOTES molecules are bonded on the surface of the dye absorbed TiO 2 , and the nanoparticles have superhydrophobic and light activated properties (Figure S12).…”

Section: Resultsmentioning

confidence: 99%

Superhydrophobic and White Light-Activated Bactericidal Surface through a Simple Coating

Hwang

Patir

Allan

et al. 2017

ACS Appl. Mater. Interfaces

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Bacterial adhesion and proliferation on surfaces are a challenge in medical and industrial fields. Here, a simple one-step technique is reported to fabricate self-cleaning and bactericidal surfaces. White, blue, and violet paints were produced using titanium dioxide nanoparticles, 1H,1H,2H,2H-perfluorooctyltriethoxysilane, crystal violet, toluidine Blue O, and ethanol solution. All of the painted surfaces showed superhydrophobicity in air, and even after hexadecane oil contamination, they retained water repellency and self-cleaning properties. In an assay of bacterial adhesion, significant reductions (>99.8%) in the number of adherent bacteria were observed for all the painted surfaces. In bactericidal tests, the painted surfaces not only demonstrated bactericidal activity against Staphylococcus aureus and Escherichia coli in the dark but also induced very potent photosensitization (>4.4 log reduction in the number of viable bacteria on the violet painted surface) under white light illumination. The technique that we developed here is general and can be used on a wide range of substrates such as paper, glass, polymers, and others.

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Section: Resultsmentioning

confidence: 99%

Superhydrophobic and White Light-Activated Bactericidal Surface through a Simple Coating

Hwang

Patir

Allan

et al. 2017

ACS Appl. Mater. Interfaces

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“…However, this method is very expensive to manufacture DSSC due to the long time required for sensitization. [18][19][20][21]. In addition to the economic aspect, the sensitization time has a great influence on short-circuit current density and open circuit voltage [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Nanostructures on the Dye Adsorption in Dye Sensitized Solar Cell

Silva¹

2021

RDMS

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In this work, ZnO nanostructures were synthesized by two distinct routes, which consisted in grow distinct morphologies on a seed layer by Chemical Bath Deposition method (CBD) using zinc acetate dihydrate, zinc chloride, zinc sulfate heptahydrate and zinc nitrate hexahydrate as precursor solutions and Ethylenediaminetetraacetic Acid (EDTA) and ammonium chloride as complex agents. The dye Eosin Y salt was adsorbed on the ZnO nanostructures using electrophoresis. The nanostructures were characterized by Scanning Electron Microscopy (SEM), X-ray Fluorescence (XRF) and X-ray Diffraction (XRD). The amount of dye adsorbed on the film surface was evaluated by UV-vis spectrophotometry. The nanostructure prepared from the ZnAc solution presented the higher concentration of dye.

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“…Screen-printing is a simple, easy, and versatile process that it makes pressure using a squeegee or other mechanical device to uniformly deposit pastes on the surface of substrate. It can create various printed products with durable property, which can resist to an external contact [ 28 , 29 ]. Therefore, it has been often employed to make uniform thin films on the surface of substrate, and simultaneously the thickness of thin films can be easily controlled by varying the number of screen-printing process.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Nanostructured Carbon Composite Materials into Counter Electrodes for Highly Efficient Dye-Sensitized Solar Cells

2018

Self Cite

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Dye-sensitized solar cells (DSSCs) composed of nanostructured carbon composite materials-stacked counter electrodes (CEs) were fabricated in the present study. As the potential replacement of expensive platinum (Pt) thin film, various carbon composite materials, including zero-dimensional carbon nanoparticles (CNPs), one-dimensional multiwalled carbon nanotubes (MWCNTs), and two-dimensional graphene flakes (GFs) as a suitable charge transfer medium were deposited on the surface of CEs using a screen printing process. As the results, CNPs were found to result in deteriorating the charge transfer from CE to liquid electrolyte due to the formation of highly aggregated structures with very low specific surface area. However, MWCNTs and MWCNTs-added carbon composites (e.g., CNP/MWCNT, MWCNT/GF, CNP/MWCNT/GF) were found to enhance the charge transfer from CE to liquid electrolyte due to the formation of highly networked structures with high specific surface area. The resulting PCE of DSSCs composed of pure MWCNTs- and MWCNTs-added carbon composites-based CEs were very similar with that of DSSCs composed of Pt-based CEs. This suggests that the nanostructured carbon materials especially composed of MWCNTs and their composites are one of the promising candidates to replace the expensive Pt in the CEs of DSSCs.

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Electrospraying-assisted rapid dye molecule uptake on the surfaces of TiO2 nanoparticles for speeding up dye-sensitized solar cell fabrication

Cited by 9 publications

References 25 publications

Superhydrophobic and White Light-Activated Bactericidal Surface through a Simple Coating

Superhydrophobic and White Light-Activated Bactericidal Surface through a Simple Coating

The Influence of the Nanostructures on the Dye Adsorption in Dye Sensitized Solar Cell

Incorporation of Nanostructured Carbon Composite Materials into Counter Electrodes for Highly Efficient Dye-Sensitized Solar Cells

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