Electrophoretic Deposition of TiO2 Films on Metal Mesh for Dye-Sensitized Solar Cells

2013 ◽  
Vol 712-715 ◽  
pp. 329-332
Author(s):  
Da Long Cheng ◽  
Yu Ching Hsu ◽  
Kuo Sheng Kao ◽  
Hong Jie Su ◽  
Chia Hua Liang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electrophoretic Deposition ◽  
Dye Sensitized Solar Cells ◽  
Short Term ◽  
Metal Mesh ◽  
Conducting Oxides ◽  
Dye Sensitized ◽  
Photovoltaic Efficiency ◽  
Transparent Conducting ◽  
Sensitized Solar Cells

Transparent conducting oxides (TCO) are commonly used in electrodes of dye-sensitized solar cells (DSSCs). The flexible DSSCs presented in this work was changed to be based on stainless steel (StSt) meshes and the mesoporous TiO2 films were fabricated by electrophoretic deposition (EPD) method which consists of repetitive short-term depositions with intermediate drying. The optimum efficiency was found by changing the TiO2 concentration of EPD solution and the potential difference between the electrodes. The experimental results show that the photovoltaic efficiency (η) of the DSSC with an active size of 1 cm2 is 3.25% under an electric field of 60 V/cm and a TiO2 concentration of EPD solution of 1.0wt%.

PALLADIUM(II)-PORPHYRIN COMPLEXES AS EFFICIENT SENSITIZERS FOR SOLAR ENERGY CONVERSION

2021 ◽  
Vol 21 (2) ◽  
pp. 557-568
Author(s):  
LIVIU OLTEANU ◽  
RODICA-MARIANA ION ◽  
RALUCA-MARIA STIRBESCU ◽  
SOFIA TEODORESCU ◽  
DORIN-DACIAN LET ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Visible Region ◽  
Electrical Characterization ◽  
Conducting Oxides ◽  
Dye Sensitized ◽  
Transparent Conducting ◽  
Tetraphenyl Porphyrin ◽  
Silicon Based ◽  
Sensitized Solar Cells

The dye-sensitized solar cells (DSSC) and thin-layer heterojunctional solar cells have attracted much attention as an alternative to relatively expensive silicon-based solar cells. Among the various photosensitizers used to build these cells, porphyrins have proven to be outstanding candidates due to their strong absorption in the visible region and have established basic and peripheral modification methods to adjust their geometry and electronic structures. Due to the improved spectral properties, the electronic spectra of these materials have been extensively studied. In this paper, the information obtained using both ultraviolet-visible (UV-VIS) and Fourier Transform Infrared (FTIR) spectroscopy have been used to evaluate the use of Pd-TPP (palladium-5,10,15,20-tetraphenyl porphyrin) as sensitizer dye on different glass substrate coated with transparent conducting oxides. The electrical characterization and quantum efficiency results, related with Pd-TPP-sensitized heterojunctional supramolecular solar cells, are also highlighted.

scholarly journals Acid Treatment of Titania Pastes to Create Scattering Layers in Dye-Sensitized Solar Cells

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Trystan Watson ◽  
Cecile Charbonneau ◽  
Daniel Bryant ◽  
David Worsley
Keyword(s):  
Solar Cells ◽  
Self Assembly ◽  
Dye Sensitized Solar Cells ◽  
Transparent Film ◽  
Similar Function ◽  
Short Term ◽  
Acid Pretreatment ◽  
Scattering Layer ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In dye-sensitized solar cells (DSC) scattering layers are used to increase the path length of light incident on the TiO2film. This is typically achieved by the deposition of an additional TiO2layer on top of an existing transparent film and designed to trap light. In this work we show that a simple acid pretreatment can lead to the formation of a scattering “skin” on the surface of a single TiO2film performing a similar function to a scattering layer without any additional depositions. This is important in increasing manufacturing throughput for DSCs as further TiO2depositions require additional materials and heat treatment. The pretreatment leads to self-assembly of a scattering layer of TiO2which covers the surface on short-term immersion (<30 min) and penetrates the bulk layer upon longer immersion. The method has been shown to increase the efficiency of the device by 20%.

scholarly journals Crystalline poly(triazine imide) based g-CN as an efficient electrocatalyst for counter electrodes of dye-sensitized solar cells using a triiodide/iodide redox electrolyte

2015 ◽  
Vol 3 (48) ◽  
pp. 24232-24236 ◽  
Author(s):  
Woo-ram Lee ◽  
Young-Si Jun ◽  
Jihee Park ◽  
Galen D. Stucky
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Pt Catalyst ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Photovoltaic Efficiency ◽  
Redox Electrolyte ◽  
Sensitized Solar Cells

DSSCs using g-CN as an electrocatalyst exhibit photovoltaic efficiency comparable to that of conventional Pt catalyst.

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