scholarly journals Photoelectrode Fabrication of Dye-Sensitized Nanosolar Cells Using Multiple Spray Coating Technique

2013 ◽  
Vol 2013 ◽  
pp. 1-8
Author(s):  
Chien-Chih Chen ◽  
Chen-Ching Ting
Keyword(s):  
Conversion Efficiency ◽  
Spray Coating ◽  
Conveyor Belt ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Coating Technique ◽  
Nanoporous Film ◽  
Dye Sensitized ◽  
Fabrication Parameter ◽  
Moving Speed

This paper presents a spray coating technique for fabricating nanoporous film of photoelectrode in dye-sensitized nanosolar cells (DSSCs). Spray coating can quickly fabricate nanoporous film of the photoelectrode with lower cost, which can further help the DSSCs to be commercialized in the future. This paper analyzed photoelectric conversion efficiency of the DSSCs using spray coated photoelectrode in comparison with the photoelectrode made with the doctor blade method. Spray coating can easily control transmittance of the photoelectrode through the multiple spray coating process. This work mainly used a dispersant with help of ultrasonic oscillation to prepare the required nano-TiO2solution and then sprayed it on the ITO glasses. In this work, a motor-operated conveyor belt was built to transport the ITO glasses automatically for multiple spray coating and drying alternately. Experiments used transmittance of the photoelectrode as a fabrication parameter to analyze photoelectric conversion efficiency of the DSSCs. The influencing factors of the photoelectrode transmittance during fabrication are the spray flow rate, the spray distance, and the moving speed of the conveyor belt. The results show that DSSC with the photoelectrode transmittance of ca. 68.0 ± 1.5% and coated by the spray coating technique has the best photoelectric conversion efficiency in this work.

Dye-Sensitized Solar Cells Based on Three-Dimensional Web-Like Structure Anodes

2012 ◽  
Vol 629 ◽  
pp. 332-338 ◽  
Author(s):  
Zhi Hua Tian ◽  
Jian Xi Yao ◽  
Mi Na Guli
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Three Dimensional ◽  
Precursor Solution ◽  
Photoelectric Conversion Efficiency ◽  
Tio2 Films ◽  
Photoelectric Conversion ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

TiO2 films with three-dimensional web-like structure have been prepared by the photo polymerization-induced phase separation method (PIPS). Scanning electron microscopy and X-ray diffraction were used to characterize the as-prepared TiO2 films. The results showed that the film texture could be tuned by changing the composition of the precursor solution. The TiO2 film with web-like structure exhibited high photocatalytic activity for the degradation of methylene blue (MB) dye. The as-prepared films were used as the photo-anodes in dye-sensitized solar cells (DSCs). The photoelectric conversion efficiency of the DSCs was significantly enhanced by changing the POGTA/TTB in the precursor solution. Because of the increased dye adsorption active sites and efficient electron transport in the TiO2 anode film, a photoelectric conversion efficiency of 3.015% was obtained.

Indirect Preparation of Titanium Dioxide Oxidation Plating Layer as Photoelectrode Used in Dye-Sensitized Solar Cells

2014 ◽  
Vol 953-954 ◽  
pp. 1095-1098 ◽  
Author(s):  
Jun Zhang ◽  
Ya Han Wu ◽  
Fang Xue ◽  
Meng Jun Yuan ◽  
Yan Huo ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Solar Cells ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Great Influence ◽  
Photoelectric Conversion Efficiency ◽  
Titanium Coating ◽  
Photoelectric Conversion ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The structural morphology, arrangement of the nanocrystalline particles, porosity factor, surface state, crystalline phase and specific area of photoelectrode film have great influence on photoelectric performance of dye sensitized solar cells (DSSCs). At present, using TiO2 as the photoelectrode in the DSSC material has achieved very good photoelectric conversion efficiency. In this paper, the plating method is adopted to directly deposited the titanium coating on the conductive glass substrate, oxidizing the surface of titanium film, so that it is generated on the surface of titanium dioxide oxidation layer. Making it as the DSSC photoelectrode, obtained relative high photoelectric conversion efficiency.

Effects of triphenyl phosphate as an inexpensive additive on the photovoltaic performance of dye-sensitized nanocrystalline TiO2 solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 50483-50493 ◽  
Author(s):  
Malihe Afrooz ◽  
Hossein Dehghani
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Photoelectric Conversion Efficiency ◽  
Triphenyl Phosphate ◽  
Photoelectric Conversion ◽  
Nanocrystalline Tio2 ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In this study, triphenyl phosphate (TPP) is applied as an effective and inexpensive additive in the dye sensitized solar cells (DSSCs) and an increase in the photoelectric conversion efficiency is obtained of almost 24%.

scholarly journals Synthesis and Characterization of a Photoelectrode with a Novel 3D Structure for Dye-Sensitized Solar Cells

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
Kun-Ching Cho ◽  
Ho Chang ◽  
Tien-Li Chen ◽  
Chung-Yi Wu
Keyword(s):  
Conversion Efficiency ◽  
Counter Electrode ◽  
Electrode Materials ◽  
Cell Structure ◽  
Short Circuit ◽  
Gel Polymer Electrolyte ◽  
3D Structure ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Dye Sensitized

This study designs a novel dye-sensitized solar cell (DSSC) in which the photoanode is derived from its three-dimensional (3D) structure. The inside of the cell has a positive illumination structure, with the purposes of increasing the area of photoelectrode thin film and of increasing the illuminated area within a fixed area in order to achieve the objective of enhancing the photoelectric conversion efficiency of cell. For the cell structure experiment, the study uses graphite paper, carbon and platinum as counter electrode materials, and then conducts measurement with cell heights of 3 mm, 5 mm, and 7 mm. The electrolyte used is a gel polymer electrolyte. The assembly of the cell is divided into vertical assembly, inclined assembly, and tandem assembly. In the 3D tandem cell experiment, the counter electrode material is platinum. Experimental results show that when cell height is 7 mm and illuminated area is 0.28 cm2, open-loop voltage is 0.662 V, short-circuit current density is 18.42 mA/cm2, fill factor is 0.31, and the photoelectric conversion efficiency is 3.85%, which is 1.65 times that under vertical assembly (2.34%) and 2.15 times that of the flat cell (1.79%).

scholarly journals Triazoloisoquinoline-Based/Ruthenium-Hybrid Sensitizer for Efficient Dye-Sensitized Solar Cells

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Che-Lung Lee ◽  
Wen-Hsi Lee ◽  
Cheng-Hsien Yang
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Ruthenium Complex ◽  
Molecular Layer ◽  
Dye Sensitized Solar Cells ◽  
Visible Spectrum ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Triazoloisoquinoline-based organic dyestuffs were synthesized and used in the fabrication of dye-sensitized solar cells (DSSCs). After cosensitization with ruthenium complex, the triazoloisoquinoline-based organic dyestuffs overcame the deficiency of ruthenium dyestuff absorption in the blue part of the visible spectrum. This method also fills the blanks of ruthenium dyestuff sensitized TiO2film and forms a compact insulating molecular layer due to the nature of small molecular organic dyestuffs. The incident photon-to-electron conversion efficiency of N719 at shorter wavelength regions is 49%. After addition of a triazoloisoquinoline-based dyestuff for co-sensitization, the IPCE at 350–500 nm increased significantly. This can be attributed to the increased photocurrent of the cells, which improves the dye-sensitized photoelectric conversion efficiency from 6.23% to 7.84%, and the overall conversion efficiency increased by about 26%. As a consequence, this low molecular weight organic dyestuff is a promising candidate as coadsorbent and cosensitizer for highly efficient dye-sensitized solar cells.

scholarly journals Double-shell SnO2/CeO2:Yb,Er hollow nanospheres as an assistant layer that suppresses charge recombination in dye-sensitized solar cells

2018 ◽  
Vol 42 (17) ◽  
pp. 14453-14458 ◽  
Author(s):  
Rongfang Zhao ◽  
Dongmei Tang ◽  
Qianhui Wu ◽  
Wenlong Li ◽  
Xiue Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Charge Recombination ◽  
Photoelectric Conversion Efficiency ◽  
Hollow Nanospheres ◽  
Photoelectric Conversion ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

When SnO2/CeO2:Yb,Er HNSs act as an assistant layer in dye-sensitized solar cells, the photoelectric conversion efficiency is enhanced to 8.66%.

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