Selenization of Cu2ZnSnS4 Enhanced the Performance of Dye-Sensitized Solar Cells: Improved Zinc-Site Catalytic Activity for I3–

2017 ◽  
Vol 9 (43) ◽  
pp. 37662-37670 ◽  
Author(s):  
Xiuwen Wang ◽  
Ying Xie ◽  
Buhe Bateer ◽  
Kai Pan ◽  
Yanqing Jiao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Zinc Site

Preparation of High Performance Pt Counter Electrodes on Conductive Plastic Substrate for Flexible Dye-Sensitized Solar Cells

2013 ◽  
Vol 544 ◽  
pp. 101-104 ◽  
Author(s):  
Ya Qi Wang ◽  
Qing Hong Zhang ◽  
Hong Zhi Wang ◽  
Yao Gang Li
Keyword(s):  
Catalytic Activity ◽  
Solar Cells ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Plastic Substrate ◽  
High Catalytic Activity ◽  
Ion Sputtering ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Pt counter electrodes (CE) were been prepared using ion sputtering method on indium-doped tinoxide coated polyethylene terephthalate (ITO-PET) for flexible dye-sensitized solar cells (DSSCs). The effect of sputtering time on the properties was characterized by Feld emission scanning electron microscope (FESEM), electrochemical impedance (EIS) and UV-vis absorption spectra. The flexible CE show increased catalytic activity but reduced transmittance when the sputtering time is increased from 0 to 80 s. The light-to-electricity conversion efficiency of the DSSCs assembled with the high catalytic activity flexible CE attained a conversion efficiency of 4.0% by using Ti foil as the photoanode substrate under the simulated AM 1.5 sunlight. The results reveal that ion sputtering is an effective method for depositing platinum nanoparticles on plastic substrates with low cost under room-temperature.

Highly crystalline, small sized, monodisperse α-NiS nanocrystal ink as an efficient counter electrode for dye-sensitized solar cells

2015 ◽  
Vol 3 (31) ◽  
pp. 15905-15912 ◽  
Author(s):  
Xiuwen Wang ◽  
Buhe Batter ◽  
Ying Xie ◽  
Kai Pan ◽  
Yongping Liao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Solar Cells ◽  
Strong Interaction ◽  
Active Sites ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

α-NiS nanocrystals exhibit excellent catalytic activity for I3− reduction due to the strong interaction between I1 and α-NiS active sites.

scholarly journals Highly Active Carbon-Based Electrocatalysts for Dye-Sensitized Solar Cells: A Brief Review

Physics ◽  
2020 ◽  
Vol 2 (3) ◽  
pp. 412-424
Author(s):  
Chi-Ang Tseng ◽  
Chuan-Pei Lee
Keyword(s):  
Catalytic Activity ◽  
Solar Cells ◽  
Active Sites ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Reduction Reaction ◽  
Dye Sensitized ◽  
Highly Active ◽  
Sensitized Solar Cells ◽  
Carbon Based

Dye-sensitized solar cells (DSSCs) have emerged as promising alternatives to traditional silicon-based solar cells due to their relatively high conversion efficiency, low cost, flexibility, and environmentally benign fabrication processes. In DSSCs, platinum (Pt)-based materials used as the counter electrode (CE) exhibit the superior catalytic ability toward the reduction reaction of triiodide ions, which are attributed to their excellent catalytic activity and high electrical conductivity. However, Pt-based materials with high cost and limited supply hinder them from mass production. Developing highly active and stable CE materials without noble metals has been a persistent challenge for the practical application in DSSCs. Recently, a number of earth-abundant catalysts, especially carbon-based materials, display high activity, low cost, and good stability that render them attractive candidates to replace Pt in DSSCs. Herein, we will briefly review recent progress on carbon-based electrocatalysts as CEs in DSSC applications. The strategies of improving the catalytic activity of carbon-based materials such as structural engineering and/or heteroatom doping will be introduced. The active sites toward the reduction reaction of triiodide ions summarized from experimental results or theoretical calculation will also be discussed. Finally, the futuristic prospects and challenges of carbon-based electrocatalysts as CEs in DSSCs will be briefly mentioned.

scholarly journals Probing the stoichiometry dependent catalytic activity of nickel selenide counter electrodes in the redox reaction of iodide/triiodide electrolyte in dye sensitized solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (65) ◽  
pp. 39509-39520
Author(s):  
Mildred A. Airo ◽  
Francis Otieno ◽  
Lineo Mxakaza ◽  
Adewale Ipadeola ◽  
Rudo S. Kadzutu-Sithole ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Solar Cells ◽  
Redox Reaction ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Nickel selenide (NixSey) systems have received much attention in recent years as potential low cost counter electrodes (CEs) in dye sensitized solar cells (DSSCs).

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