scholarly journals Recent Development of Graphene-Based Cathode Materials for Dye-Sensitized Solar Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-21 ◽  
Author(s):  
Man-Ning Lu ◽  
Chin-Yu Chang ◽  
Tzu-Chien Wei ◽  
Jeng-Yu Lin
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Inorganic Compounds ◽  
Dye Sensitized Solar Cells ◽  
Reduction Reaction ◽  
Vital Role ◽  
Future Research ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Dye-sensitized solar cells (DSSCs) have attracted extensive attention for serving as potential low-cost alternatives to silicon-based solar cells. As a vital role of a typical DSSC, the counter electrode (CE) is generally employed to collect electrons via the external circuit and speed up the reduction reaction ofI3-toI-in the redox electrolyte. The noble Pt is usually deposited on a conductive glass substrate as CE material due to its excellent electrical conductivity, electrocatalytic activity, and electrochemical stability. To achieve cost-efficient DSSCs, reasonable efforts have been made to explore Pt-free alternatives. Recently, the graphene-based CEs have been intensively investigated to replace the high-cost noble Pt CE. In this paper, we provided an overview of studies on the electrochemical and photovoltaic characteristics of graphene-based CEs, including graphene, graphene/Pt, graphene/carbon materials, graphene/conducting polymers, and graphene/inorganic compounds. We also summarize the design and advantages of each graphene-based material and provide the possible directions for designing new graphene-based catalysts in future research for high-performance and low-cost DSSCs.

Reasonable construction of Fe3O4/Ni@N-RGO nanoflowers as highly efficient counter electrodes for dye-sensitized solar cells

2020 ◽  
Vol 4 (7) ◽  
pp. 3604-3612
Author(s):  
Haifeng Xu ◽  
Zhong Jin
Keyword(s):  
Corrosion Resistance ◽  
Solar Cells ◽  
High Performance ◽  
Rational Design ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Excellent Corrosion Resistance ◽  
Sensitized Solar Cells

The rational design of high-performance yet low-cost counter electrodes (CEs) with exceptional catalytic activity for the I−/I3− redox couple and excellent corrosion resistance is of great importance for dye-sensitized solar cells (DSSCs).

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 Recent Progress in Dye-Sensitized Solar Cells for Improving Efficiency: TiO2Nanotube Arrays in Active Layer

2015 ◽  
Vol 2015 ◽  
pp. 1-17 ◽  
Author(s):  
Won-Yeop Rho ◽  
Hojin Jeon ◽  
Ho-Sub Kim ◽  
Woo-Jae Chung ◽  
Jung Sang Suh ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Recent Progress ◽  
Low Cost ◽  
Incident Light ◽  
Dye Sensitized Solar Cells ◽  
Performance Ratio ◽  
Future Research ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Dye-sensitized solar cells (DSSCs) have been widely studied due to several advantages, such as low cost-to-performance ratio, low cost of fabrication, functionality at wide angles and low intensities of incident light, mechanical robustness, and low weight. This paper summarizes the recent progress in DSSC technology for improving efficiency, focusing on the active layer in the photoanode, with a part of the DSSC consisting of dyes and a TiO2film layer. In particular, this review highlights a huge pool of studies that report improvements in the efficiency of DSSCs using TiO2nanotubes, which exhibit better electron transport. Finally, this paper suggests opportunities for future research.

scholarly journals Effect of an auxiliary acceptor on D–A–π–A sensitizers for highly efficient and stable dye-sensitized solar cells

2016 ◽  
Vol 4 (33) ◽  
pp. 12865-12877 ◽  
Author(s):  
Yuting Gao ◽  
Xing Li ◽  
Yue Hu ◽  
Yeli Fan ◽  
Jianyong Yuan ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Metal Free ◽  
Dye Sensitized ◽  
Highly Efficient ◽  
Photovoltaic Technologies ◽  
Sensitized Solar Cells

As one of the promising photovoltaic technologies, high performance metal-free dye-sensitized solar cells (DSSCs) have been explored due to the fact that they can be potentially produced using low-cost materials, their color can be tuned and they exhibit reasonable stability.

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