Spatially Resolved Current-Voltage Measurements—Evidence for Nonuniform Photocurrents in Dye-Sensitized Solar Cells

2008 ◽  
Vol 155 (3) ◽  
pp. B290 ◽  
Author(s):  
Michael J. Scott ◽  
Michael Woodhouse ◽  
Bruce A. Parkinson ◽  
C. Michael Elliott
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Spatially Resolved ◽  
Current Voltage ◽  
Sensitized Solar Cells

Dye-sensitized solar cells: Scale up and current–voltage characterization

2007 ◽  
Vol 91 (18) ◽  
pp. 1676-1680 ◽  
Author(s):  
Won Jae Lee ◽  
Easwaramoorthi Ramasamy ◽  
Dong Yoon Lee ◽  
Jae Sung Song
Keyword(s):  
Solar Cells ◽  
Scale Up ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Current Voltage ◽  
Sensitized Solar Cells

The effects of shell characteristics on the current-voltage behaviors of dye-sensitized solar cells based on ZnO/TiO2 core/shell arrays

2009 ◽  
Vol 94 (26) ◽  
pp. 263506 ◽  
Author(s):  
Meili Wang ◽  
Changgang Huang ◽  
Yongge Cao ◽  
Qingjiang Yu ◽  
Wang Guo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Core Shell ◽  
Dye Sensitized ◽  
Current Voltage ◽  
Sensitized Solar Cells

scholarly journals Synthesis, characterization and application of Ru(II) complexes containing pyridil ligands for dye-sensitized solar cells

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Osman Dayan ◽  
Namik Özdemir ◽  
Fahrettin Yakuphanoğlu ◽  
Zafer Şerbetci ◽  
Ali Bilici
Keyword(s):  
Solar Cells ◽  
Dft Calculations ◽  
Isonicotinic Acid ◽  
Dye Sensitized Solar Cells ◽  
Molecular Orbitals ◽  
Frontier Molecular Orbitals ◽  
Dye Sensitized ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Sensitized Solar Cells

AbstractIn this research, a series of Ru(II) complexes, ([Ru(1-7)(ina)(NCS)2] (1-7=5-[6-(5-mercapto-1,3,4-oxadiazol-2-yl)pyridin- 2-yl]-1,3,4-oxadiazole-2-thiol’s, ina=isonicotinic acid) were synthesized and characterized using different spectroscopic and analytic techniques, such as NMR, UV, IR, CV and CHN. Also, the new complexes were used in dye-sensitized solar cells (DSSC) as sensitizers. Current-voltage characteristics showed that the modifications of ligands clearly affected DSSC yield. Additionally, DFT calculations were performed and showed locations of frontier molecular orbitals of the complexes. While the locations of HOMO and HOMO – 1 orbitals are on Ru(II) metal center and SCN− ligands, the location of LUMO and LUMO + 1 orbitals are on the 1-7 ligands.

scholarly journals Examining architectures of photoanode–photovoltaic tandem cells for solar water splitting

2010 ◽  
Vol 25 (1) ◽  
pp. 17-24 ◽  
Author(s):  
Jeremie Brillet ◽  
Maurin Cornuz ◽  
Florian Le Formal ◽  
Jun-Ho Yum ◽  
Michael Grätzel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Water Splitting ◽  
Organic Dyes ◽  
Dye Sensitized Solar Cells ◽  
Solar Water Splitting ◽  
Dye Sensitized ◽  
Current Voltage ◽  
Squaraine Dye ◽  
Operating Current ◽  
Sensitized Solar Cells

Given the limitations of the materials available for photoelectrochemical water splitting, a multiphoton (tandem) approach is required to convert solar energy into hydrogen efficiently and durably. Here we investigate a promising system consisting of a hematite photoanode in combination with dye-sensitized solar cells with newly developed organic dyes, such as the squaraine dye, which permit new configurations of this tandem system. Three configurations were investigated: two side-by-side dye cells behind a semitransparent hematite photoanode, two semitransparent dye sensitized solar cells (DSCs) in front of the hematite, and a trilevel hematite/DSC/DSC architecture. Based on the current-voltage curves of state-of-the-art devices made in our laboratories, we found the trilevel tandem architecture (hematite/SQ1 dye/N749 dye) produces the highest operating current density and thus the highest expected solar-to-hydrogen efficiency (1.36% compared with 1.16% with the standard back DSC case and 0.76% for the front DSC case). Further investigation into the wavelength-dependent quantum efficiency of each component revealed that in each case photons lost as a result of scattering and reflection reduce the performance from the expected 3.3% based on the nanostructured hematite photoanodes. We further suggest avenues for the improvement of each configuration from both the DSC and the photoanode parts.

scholarly journals The influence of the dye adsorption time on the DSSC performance

2019 ◽  
Vol 100 ◽  
pp. 00040 ◽  
Author(s):  
Ewelina Krawczak ◽  
Agata Zdyb
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Adsorption ◽  
Standard Test ◽  
Open Circuit ◽  
Characteristic Parameters ◽  
Dye Sensitized ◽  
Current Voltage ◽  
Sensitized Solar Cells

Dye-sensitized solar cells (DSSC) of third generation photovoltaic technology, are nowadays one of the most investigated due to possibility to apply ecological and natural materials (dyes) such as alizarin. This paper reports the influence of electrode immersion time on alizarin-based dye-sensitized solar cells performance. The absorption spectra of alizarin dye were measured in the range of 300-800 nm. Fully structured dye-sensitized cells of working area equal to 0.8 cm2 have been fabricated in the sandwich way using four different immersion times of the TiO2 electrodes: 10’, 40’, 1 h, 24 h. The high-performance EL- HPE electrolyte was instilled into the space between electrodes. Current-voltage (I-V) dark and illuminated characteristics have been measured using solar light simulator. Solar cells characterization was carried out under standard test conditions. The solar irradiance was set at 100 mW/cm2 and temperature of the module was maintained at 25°C. Characteristic parameters of the fabricated cells were determined on the basis of measured I-V curves. Series resistances were extracted from I-V characteristics at an open circuit voltage using first order derivatives. It was found that 60 minutes of electrode immersion in dye solution is sufficient to obtain appropriate stage of the dye adsorption.

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