Photovoltaic characterization of dye-sensitized solar cells: effect of device masking on conversion efficiency

2006 ◽  
Vol 14 (7) ◽  
pp. 589-601 ◽  
Author(s):  
Seigo Ito ◽  
Md. Khaja Nazeeruddin ◽  
Paul Liska ◽  
Pascal Comte ◽  
Raphaël Charvet ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Photovoltaic Characterization ◽  
Sensitized Solar Cells

Enhancement of the Efficiency of Dye-Sensitized Solar Cells (DSSC) by Utilizing Silver Plasmonic Nanoparticles on Hydrothermally-Treated Titania (TiO2) Photoanode

2014 ◽  
Vol 970 ◽  
pp. 224-227
Author(s):  
Daniel Angelo C. Camacho ◽  
Jenrry T. Daulo
Keyword(s):  
Solar Cells ◽  
Hydrothermal Treatment ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Overall Efficiency ◽  
Photovoltaic Characteristics ◽  
Sensitized Solar Cells ◽  
Scanning Electron

Titanium dioxide (TiO2) has been long used as a photoanode for dye-sensitized solar cells (DSSC) for its high photoreductive capability. One approach towards increasing the performance of TiO2 is to load silver nanoparticles (Ag NP) unto the substrate. In this study, hydrothermal treatment of as-received TiO2 anatase was utilized to fabricate nanostructures that could increase the overall efficiency of DSSC. This hydrothermally-treated TiO2 was loaded with Ag NP via the photodegration of silver nitrate (AgNO3). Characterization of Ag-loaded TiO2 (Ag-TiO2), done using Raman Spectroscopy and Field Emission Scanning Electron Microscopy (FESEM), reveal the anatase characteristic of the samples after hydrothermal treatment, as well as the crystalline structure transformation from tetragonal to monoclinic. Furthermore, upon application of the produced TiO2 samples in DSSC, photovoltaic characteristics were obtained. There was an increase in the current density of all of the Ag-TiO2 samples as compared to the untreated TiO2 sample. The DSSC produced using 0.20 Ag-TiO2 ratio exhibited the highest conversion efficiency, resulting to more than 3000% increase in conversion efficiency from the untreated TiO2 sample.

A facile and convenient synthesis and photovoltaic characterization of novel thieno[2,3-b]indole dyes for dye-sensitized solar cells

2015 ◽  
Vol 199 ◽  
pp. 152-158 ◽  
Author(s):  
Roman A. Irgashev ◽  
Arseny A. Karmatsky ◽  
Sergey A. Kozyukhin ◽  
Vladimir K. Ivanov ◽  
Alexey Sadovnikov ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Convenient Synthesis ◽  
Photovoltaic Characterization ◽  
Sensitized Solar Cells

Impact of photocatalysis on carotenoic acid dye-sensitized solar cells

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Res Jöhr ◽  
Lukasz Zajac ◽  
Gino Günzburger ◽  
Hubert Hug ◽  
Bartosz Such ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Device Fabrication ◽  
Photocatalytic Decomposition ◽  
Photovoltaic Devices ◽  
Dye Sensitized ◽  
Photovoltaic Applications ◽  
Sensitized Solar Cells

AbstractSensitized mesoporous titania is of increasing interest for catalysis and photovoltaic devices such as dye-sensitized solar cells (DSCs). For photovoltaic applications, the catalytic properties of TiO2 can cause degradation of the dyes during device fabrication. This is especially the case if natural sensitizers are used. We addressed this issue by fabrication of carotenoic acid sensitized solar cells under inert and ambient assembly conditions. The DSCs were investigated by currentvoltage and quantum efficiency measurements. Further characterization of the cells was made using impedance spectroscopy. The conversion efficiency of the DSCs prepared under inert conditions improved by at least 25% and the devices showed an enhanced reproducibility. The improvement of the DSCs correlated with the conversion efficiency of the sensitizers under inert conditions. We conclude that the photocatalytic bleaching depends on the electron injection efficiency of the sensitizer. Hence carotenoic acids support their own degradation. However, the photocatalytic decomposition of the sensitizers can be avoided by fabrication of the DSCs under inert conditions.

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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