scholarly journals Carbon Nanotubes Counter Electrode for Dye-Sensitized Solar Cells Application

2016 ◽  
Vol 61 (2) ◽  
pp. 803-806 ◽  
Author(s):  
A. Drygała ◽  
L. A. Dobrzański ◽  
M. Szindler ◽  
M. Prokopiuk vel Prokopowicz ◽  
M. Pawlyta ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Large Scale ◽  
Counter Electrode ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Counter Electrodes ◽  
Glass Substrates ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

AbstractThe influence of the carbon nanotubes counter electrode deposited on the FTO glass substrates on the structure and optoelectrical properties of dye-sensitized solar cells counter electrode (CE) was analysed. Carbon materials have been applied in DSSC s in order to produce low-cost solar cells with reasonable efficiency. Platinum is a preferred material for the counter electrode because of its high conductivity and catalytic activity. However, the costs of manufacturing of the platinum counter electrode limit its use to large-scale applications in solar cells. This paper presents the results of examining the structure and properties of the studied layers, defining optical properties of conductive layers and electrical properties of dye-sensitized solar cells manufactured with the use of carbon nanotubes.Such counter electrodes are promising for the future fabrication of stable, low-cost and effective dye-sensitized solar cells.

Improved Efficiency of Dye Sensitized Solar Cells Using Aligned Carbon Nanotubes

2009 ◽  
Author(s):  
Robert A. Sayer ◽  
Stephen L. Hodson ◽  
Timothy S. Fisher
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Counter Electrode ◽  
Microwave Plasma ◽  
Dye Sensitized Solar Cells ◽  
Planar Geometry ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Cnt Arrays ◽  
Sensitized Solar Cells

Dye sensitized solar cells (DSSCs) offer many advantages in comparison to their Si-based counterparts, including lower cost of raw materials, faster manufacturing time, and the ability to be integrated with flexible substrates. Although many advances have been made in DSSC fabrication over recent years, their efficiency remains lower than commercially available Si photovoltaic cells. Here we report improved efficiency of TiO2/anthocyanin dye solar cell using aligned arrays of carbon nanotubes (CNTs) as a counter electrode. Dense vertically oriented CNT arrays are grown directly on the counter electrode using microwave plasma chemical vapor deposition and a tri-layer (Ti/Al/Fe) catalyst. The resulting arrays are 30 micrometers in height and have a number density of approximately five hundred million per square millimeter. By directly growing the CNTs on the counter electrode substrate, electrical interface conductance is enhanced. The performance of both as-grown and N-doped (using a nitrogen plasma) CNT arrays is reported. The fabricated DSSCs are tested under AM1.5 light. Increased short circuit current is observed in comparison to graphite and Pt counter electrodes. We attribute this improvement to the large surface area created by the 3D structure of the arrays in comparison to the planar geometry of the graphite and Pt electrodes as well as the excellent electrical properties of the CNTs.

scholarly journals Dye Sensitized Solar Cells with Low Cost Carbon Nanotubes Electrodes

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
F. M. Al-Marzouki ◽  
S. Abdalla ◽  
S. Al-Ameer
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Counter Electrodes ◽  
Partial Shading ◽  
Dye Sensitized ◽  
Solid Film ◽  
Solar Conversion ◽  
Sensitized Solar Cells

Dye sensitized solar cells (DSSCs) are very sensitive to electrodes, due to either high cost or easy corrosion problems. To minimize these factors, we present DSSCs with cheap carbon nanotubes as counter electrodes. In addition, we suggest replacing the electrolyte (in typical DSSCs) with a solid film of powdered CsSnI3. The electrical behavior (I-Vcharacteristics) of the proposed device has been measured for different shading conditions. In the light of a theoretical model based on the presence of two diodes, the experimental data have been explained, taking into account a new equivalent circuit for the DSSC. These DSSCs may receive different levels of sun radiation, which stimulates the study of partial shading; so, we have studied the effect of different shadow rates on the solar conversion efficiency of a unit of 4-W-connected DSSCs. The validity of the present model has been examined by fitting it intoI-Vcharacteristics at different shading rates.

Sputtering and sulfurization-combined synthesis of a transparent WS2 counter electrode and its application to dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (125) ◽  
pp. 103567-103572 ◽  
Author(s):  
Sajjad Hussain ◽  
Shoyebmohamad F. Shaikh ◽  
Dhanasekaran Vikraman ◽  
Rajaram S. Mane ◽  
Oh-Shim Joo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Counter Electrode ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Large Area ◽  
Counter Electrodes ◽  
Tungsten Sulfide ◽  
Dye Sensitized ◽  
Radio Frequency Sputtering ◽  
Sensitized Solar Cells

In this work, continuous and large-area tungsten sulfide films, deposited by radio frequency sputtering followed by a sulfurization process, were applied as a low-cost platinum-free counter electrodes for dye-sensitized solar cells.

scholarly journals Improvement of Efficiency of Dye Sensitized Solar Cells by Incorporating Carbon Nanotubes

2021 ◽  
Author(s):  
Md. Mosharraf Hossain Bhuiyan ◽  
Fahmid Kabir ◽  
Md. Serajum Manir ◽  
Md. Saifur Rahaman ◽  
Prosenjit Barua ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Counter Electrode ◽  
Raw Materials ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Low Viscosity ◽  
Strength And Durability ◽  
Sensitized Solar Cells

Dye-sensitized solar cells (DSSCs) have aroused intense attention over the past three decades owing to their low cost, inexpensive raw materials, simple fabrication process, and employment of eco-friendly materials. Recently, to take advantage of their lower electrical resistance, excellent electrocatalytic operation, mechanical integrity, low cost, and flexibility, carbon nanotubes CNTs have been incorporated into DSSCs with a view to improve the efficiency further. CNT can be used in the anode, electrolyte, and counter electrode. The incorporation of CNTs into the anode’s semiconductor material decreases the host material’s resistance and increases thermal conductivity, electrical conductivity, mechanical strength, and durability. CNTs in ionic liquids have been investigated as a potential alternative for traditional liquid electrolytes for DSSC application because of low viscosity, low vapor pressure, high diffusion coefficient, high electrochemical, and thermal stability. CNT based counter electrode has attracted considerable interest because of its fast electron transfer kinetics and large surface area. This book chapter provides an insight into the fabrication of DSSCs by incorporating CNT and its effects on cell conversion efficiencies.

Mesoporous Bi2S3 nanorods with graphene-assistance as low-cost counter-electrode materials in dye-sensitized solar cells

Nanoscale ◽  
2014 ◽  
Vol 6 (23) ◽  
pp. 14433-14440 ◽  
Author(s):  
Sheng-qi Guo ◽  
Tian-zeng Jing ◽  
Xiao Zhang ◽  
Xiao-bing Yang ◽  
Zhi-hao Yuan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Counter Electrode ◽  
Electrode Materials ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Hydrothermal Conditions ◽  
Catalytic Activities ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In this work, we report the synthesis of mesoporous Bi2S3 nanorods under hydrothermal conditions without additives, and investigated their catalytic activities as the CE in DSCs by I–V curves and tested conversion efficiency.

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