Effect of Cu(Cr0.2Al0.8)2O4/TiO2 Composite Film Electrodes on DSSC Photoelectric Properties

2013 ◽  
Vol 275-277 ◽  
pp. 1683-1687
Author(s):  
Feng Xia Zhou ◽  
Yan Yan Jiang ◽  
Ji Wen Zhang ◽  
Jing Xiao Liu ◽  
Gui Shan Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Composite Film ◽  
Conversion Efficiency ◽  
Diffuse Reflectance Spectrum ◽  
Composite Films ◽  
Dye Sensitized Solar Cells ◽  
Nano Particles ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Photoelectric Properties

Cu(Cr0.2Al0.8)2O4/TiO2composite film electrodes were prepared on FTO glass substrate by screen printing method after Cu(Cr0.2Al0.8)2O4nano-particles were doped in TiO2powers. The characteristics were studied by the X-ray diffraction for the crystalline structure of composite films, UV-Vis diffuse reflectance spectrum instruction for absorption spectrum of composite films and dye sensitized solar cells tester for the performance of DSSC. The results show doping Cu(Cr0.2Al0.8)2O4powers could enhance UV-Vis spectral absorption strength and improve the photoelectric conversion efficiency of the solar cells when the doping content of Cu(Cr0.2Al0.8)2O4is 3％. Compared with pure TiO2film electrodes, the photoelectric conversion efficiency of the solar cells reaches to 3.59％.

Preparation and Photoelectric Properties of Spinel MCr2O4 (M = Cu, Ni) Nanopowders

2011 ◽  
Vol 415-417 ◽  
pp. 1594-1598
Author(s):  
Zhi Qiang Hu ◽  
Ying Qin ◽  
Xian Qing Liu ◽  
Shang Ru Zhai ◽  
Hong Gao
Keyword(s):  
Composite Film ◽  
Conversion Efficiency ◽  
Composite Electrode ◽  
Diffuse Reflectance Spectrum ◽  
Aqueous System ◽  
Photoelectric Conversion Efficiency ◽  
Film Electrode ◽  
Photoelectric Conversion ◽  
Photoelectric Properties ◽  
Co Precipitation

Spinel MCr2O4(M = Cu, Ni) nanopowders were synthesized by co-precipitation technique from alcohol-aqueous system and the performance of MCr2O4/TiO2 composite film electrodes was studied. The synthesized MCr2O4 nanopowders were characterized by X-ray diffraction (XRD) and UV-vis diffuse reflectance spectrum (UV-vis). The MCr2O4 nanopowders were doped into nanocrystalline semiconductor oxide film electrode of DSSCs and the influence of doping content was investigated. Compared with the pure TiO2 film electrode, the absorbance of different MCr2O4/TiO2 composite film electrode increased significantly. Furthermore, the light respondence of CuCr2O4/TiO2 composite electrode was better than NiCr2O4/TiO2 composite electrode. When the content of CuCr2O4 2%, the photoelectric conversion efficiency increased by 54%, and doping 1% NiCr2O4 nanopowders, the photoelectric conversion efficiency was improved 30%.

Preparation of Nanosize Anatase TiO2 by a Simple, Low-Cost Method and their Performance in Dye Sensitized Solar Cells

2011 ◽  
Vol 415-417 ◽  
pp. 1764-1768
Author(s):  
Lin Liu ◽  
Xiao Peng ◽  
Xiang Mei Yu ◽  
Ya Qing Feng
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Nano Particles ◽  
Molar Ratio ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The critical material of photo-anode, the TiO2nano-particles, as the most important component in dye sensitized solar cells (DSSCs) was studied in this paper. The TiO2nanoparticles were prepared by the method of micro-emulsion. In the process of preparation, the factors including the kinds of surfactant, and the molar ratio of water to titanium (R value) were investigated. Finally, the optimal condition for the preparation of the TiO2nano-particles was determined. When Tx-100 was used as the surfactant and R was 35, the TiO2nano-particles were prepared and used as photo-anode in the DSSCs, which were sensitized by N719, test under AM1.5G sunlight. The highest photoelectric conversion efficiency was achieved: Short-circuit photocurrent (Isc) =13.91mA/cm2, open-circuit photo voltage (Voc) =0.83V, fill factor (FF) =55.06%, photoelectric conversion efficiency (η) =6.36%.

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 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.

Study on Properties of Dye-Sensitized TiO2 Films

2012 ◽  
Vol 602-604 ◽  
pp. 1492-1496
Author(s):  
Wei Cong ◽  
Jiang Li ◽  
En Xiang Han
Keyword(s):  
Solar Cells ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Tetrabutyl Titanate ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Hydrothermal Temperature ◽  
Dye Sensitized ◽  
Photoelectric Properties ◽  
Titania Films

TiO2nanoporous thin films were fabricated by the hydrothermal method using tetrabutyl titanate as the precursor and used to assemble dye-sensitized solar cells. The properties which include the short-circuit photocurrent(ISC),open-circuit voltage(VOC) and the fill factor(FF)of the solar cells were tested. The microstructure of titania films were modulated by changing the hydrothermal reaction temperature and the amount of PEG and the influence on the properties of the solar cells by titania films weas studied. The results indicate that there are better photoelectric properties for TiO2films at the hydrothermal temperature fo 230°C and the additive amount of PEG being 5% of the mass of TiO2. ISC,VOCand FF was 12.42mA, 681mV, and 0.52 respectively, the photoelectric conversion efficiency(η)was 4.37%．

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