Engineering the Photoanode Using Scalable Hybrid Nanostructures

2011 ◽  
Author(s):  
Thad Druffel ◽  
Venkat Kalyan Vendra ◽  
Delaina Amos ◽  
Mahendra Sunkara
Keyword(s):  
Large Scale ◽  
Dye Sensitized Solar Cells ◽  
Cost Effective ◽  
Open Circuit ◽  
Hybrid Nanostructures ◽  
Dye Sensitized ◽  
Effective Technology ◽  
The Cost ◽  
Sensitized Solar Cells ◽  
Selection Of

Dye sensitized solar cells (DSSCs) have garnered a great deal of interest as a cost-effective technology for large-scale manufacturing. Engineered inorganic hybrid nanostructures can improve the performance of DSSC’s without affecting the cost effectiveness of the devices. Here, we present a concept of engineered hybrid nanostructures, incorporating appropriate selection of nanowire and nanoparticle materials, to enhance the charge transport and reduce the recombination within the photoanode. Low recombination properties of this photoanode allow flexibility in choosing the redox couple for increasing open circuit voltage.

scholarly journals Synergy of co-sensitizers in a copper bipyridyl redox system for efficient and cost-effective dye-sensitized solar cells in solar and ambient light

2020 ◽  
Vol 8 (3) ◽  
pp. 1279-1287 ◽  
Author(s):  
Ellie Tanaka ◽  
Hannes Michaels ◽  
Marina Freitag ◽  
Neil Robertson
Keyword(s):  
Solar Cell ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Cost Effective ◽  
Redox System ◽  
Dye Sensitized Solar Cell ◽  
Ambient Light ◽  
Dye Sensitized ◽  
The Cost ◽  
Sensitized Solar Cells

Co-sensitization can reduce the cost of a dye-sensitized solar cell, while maintaining high efficiency: up to 29% in ambient light.

A Potential of Large Scale of Dye Sensitized Solar Cells using Metallic Titanium Sheet as the Substrate for Photoelectrode

2007 ◽  
Vol 1013 ◽  
Author(s):  
Kinji Onoda ◽  
Supachai Ngamsinlapasathian ◽  
Takuya Fujieda ◽  
Susumu Yoshikawa
Keyword(s):  
Solar Cells ◽  
Cell Size ◽  
Large Scale ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Open Circuit ◽  
Potential Candidate ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

AbstractThe photovoltaic properties of dye-sensitized solar cells (DSCs) based on fluorine doped tin oxide (FTO) and Ti substrates were investigated. The sheet resistances of the substrates were correlated to the photovoltaic properties. The efficiency of the Ti substrate based DSC was higher than that of the FTO substrate based DSC, due to a high fill factor (FF). To minimize the internal resistance of the DSCs, Ti plate was used as a support for nanocrystalline TiO2, because of its low sheet resistance. As the light was absorbed by the electrolyte layer, the incident photon to current efficiency (IPCE) values decreased in the range between 400-600 nm. The electrolyte concentrations were optimized to obtain a higher cell performance. When using an electrolyte composed of 0.02 M I2, 0.2 M LiI, and 0.5 M 4-tert-butylpyridine, an efficiency of 4.98% was obtained for the Ti substrate based DSC with a short circuit current density (Jsc) of 11.25 mAcm-2, an open circuit voltage (Voc) of 0.692 V, and a FF of 0.639. The effect of the cell size on the photovoltaic properties was also investigated. The rate of decrease in a FF and efficiency with increase in the cell size was lower for the Ti substrate based DSCs than the FTO substrate based DSCs. This result indicates that Ti plate is a potential candidate for production of large DSCs.

scholarly journals Dye-sensitized solar cells using deep eutectic solvents mixed with ethanol as an effective electrolyte medium

2018 ◽  
Vol 21 (1) ◽  
pp. 15-23
Author(s):  
Thuy-Duy Thi Nguyen ◽  
Phuong Tuyet Nguyen ◽  
Phuong Hoang Tran
Keyword(s):  
Solar Cells ◽  
Large Scale ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Cost Effective ◽  
Deep Eutectic Solvents ◽  
Dye Sensitized ◽  
Ethanol Medium ◽  
New Type ◽  
Sensitized Solar Cells

This research aims to develop a new type of electrolyte for dye-sensitized solar cells (DSCs) which can be produced in cost-effective and large scale. DSCs using deep eutectic solvents (DESs) mixed with ethanol (50% w/w DES content), as an electrolyte medium, was studied herein for the first time. Ten types of DESs were synthesized and three among them were potential candidates for DSC electrolytes. Compared to toxic and volatile organic solvents, this mixed solvent is more eco-friendly and inexpensive. According to J-V curve measurements, DSCs that used DES-ethanol medium showed promising photovoltaic performance.

scholarly journals A single layer deposition of Li-doped mesoporous TiO2 beads for low-cost and efficient dye-sensitized solar cells

2021 ◽  
Vol 45 (5) ◽  
pp. 2470-2477
Author(s):  
P. Golvari ◽  
E. Nouri ◽  
N. Mohsenzadegan ◽  
M. R. Mohammadi ◽  
S. O. Martinez-Chapa
Keyword(s):  
Light Scattering ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Single Layer ◽  
Cost Effective ◽  
Mesoporous Tio2 ◽  
Trap States ◽  
Dye Sensitized ◽  
Layer Deposition ◽  
Sensitized Solar Cells

Cost-effective DSCs with superior electronic properties are gained by a reduction in electronic trap states and outstanding light scattering and harvesting.

Thiocyanate Free Ruthenium(II) Complexes for Dye Sensitized Solar Cells (DSSCs)

2018 ◽  
Vol 382 ◽  
pp. 369-373
Author(s):  
Usana Mahanitipong ◽  
Preeyapat Prompan ◽  
Rukkiat Jitchati
Keyword(s):  
Solar Cells ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Visible Region ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Dye Sensitized ◽  
Ligand Charge Transfer ◽  
Sensitized Solar Cells ◽  
Open Circuit Photovoltage

The four thiocyanate free ruthenium(II) complexes; [Ru(N^N)2(C^N)]PF6were synthesized and characterized for dye sensitized solar cells (DSSCs). The results showed that the broad absorptions covered the visible region from metal to ligand charge transfer (MLCT) were obtained with the main peaks at 560, 490 and 400 nm. The materials were studied DSSC performance under standard AM 1.5. Compound PP1 showed the power conversion efficiency (PCE) at 3.10%, with a short-circuit photocurrent density (Jsc) of 7.99 mA cm-2, an open-circuit photovoltage (Voc) of 563 mV and a high fill factor (ff) of 0.690.

New Dual Donor-Acceptor (2D-π-2A) Porphyrin Sensitizers for Stable and Cost-Effective Dye-Sensitized Solar Cells

2013 ◽  
Vol 8 (9) ◽  
pp. 2144-2153 ◽  
Author(s):  
Ram B. Ambre ◽  
Gao-Fong Chang ◽  
Manoj R. Zanwar ◽  
Ching-Fa Yao ◽  
Eric Wei-Guang Diau ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Cost Effective ◽  
Dye Sensitized ◽  
Donor Acceptor ◽  
Sensitized Solar Cells

IMPROVING STABILITY OF CHLOROPHYLL AS NATURAL DYE FOR DYE-SENSITIZED SOLAR CELLS

2017 ◽  
Vol 80 (1) ◽  
Author(s):  
Zainal Arifin ◽  
Sudjito Soeparman ◽  
Denny Widhiyanuriyawan ◽  
Suyitno Suyitno ◽  
Argatya Tara Setyaji
Keyword(s):  
Current Density ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Natural Dyes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Natural dyes have attracted much researcher’s attention due to their low-cost production, simple synthesis processes and high natural abundance. However the dye-sensitized solar cells (DSSCs) based natural dyes have higher tendency to degradation. This article reports on the enhancement of performance and stability of dye-sensitized solar cells (DSSCs) using natural dyes. The natural dyes were extracted from papaya leaves by ethanol solvent at a temperature of 50 °C. Then the extracted dyes were isolated and modified into Mg-chlorophyll using column chromatography. Mg-chlorophyll was then synthesized into Fe-chlorophyll to improve stability. The natural dyes were characterized using ultraviolet-visible spectrometry, Fourier transform infrared spectroscopy, and cyclic voltammetry. The performance of DSSCs was tested using a solar simulator. The results showed the open-circuit voltage, the short-circuit current density, and the efficiency of the extracted papaya leaves-based DSSCs to be 325 mV, 0.36 mA/cm2, and 0.07%, respectively. Furthermore, the DSSCs with purified chlorophyll provide high open-circuit voltage of 425 mV and short-circuit current density of 0.45 mA/cm2. The use of Fe-chlorophyll for sensitizing the DSSCs increases the efficiency up to 2.5 times and the stability up to two times. The DSSCs with Fe-chlorophyll dyes provide open-circuit voltage, short-circuit current density, and efficiency of 500 mV, 0.62 mA/cm2, and 0.16%, respectively. Further studies to improve the current density and stability of natural dye-based DSSCs along with an improvement in the anchor between dyes and semiconducting layers are required.

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