scholarly journals In Situ Mapping of the Molecular Arrangement of Amphiphilic Dye Molecules at the TiO2 Surface of Dye-Sensitized Solar Cells

2015 ◽  
Vol 7 (20) ◽  
pp. 10834-10842 ◽  
Author(s):  
Kislon Voïtchovsky ◽  
Negar Ashari-Astani ◽  
Ivano Tavernelli ◽  
Nicolas Tétreault ◽  
Ursula Rothlisberger ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Surface ◽  
Dye Molecules ◽  
Dye Sensitized ◽  
Molecular Arrangement ◽  
Sensitized Solar Cells

Influence of TiO2 surface defects on the adsorption of N719 dye molecules

2021 ◽  
Vol 23 (38) ◽  
pp. 22160-22173
Author(s):  
Altaf A. Shamsaldeen ◽  
Lars Kloo ◽  
Yanting Yin ◽  
Christopher Gibson ◽  
Sunita Gautam Adhikari ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Defects ◽  
Dye Sensitized Solar Cells ◽  
Dye Adsorption ◽  
Tio2 Surface ◽  
Dye Molecules ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Surface defects influence the dye adsorption on TiO2 used as a substrate in dye-sensitized solar cells (DSSCs).

scholarly journals New Oxindole-Bridged Acceptors for Organic Sensitizers: Substitution and Performance Studies in Dye-Sensitized Solar Cells

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2159
Author(s):  
Yogesh S. Tingare ◽  
Chaochin Su ◽  
Ming-Tai Shen ◽  
Sheng-Han Tsai ◽  
Shih-Yu Ho ◽  
...  
Keyword(s):  
Solar Cells ◽  
Performance Studies ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Surface ◽  
Carbonyl Groups ◽  
Dye Sensitized ◽  
Amide Carbonyl ◽  
And Performance ◽  
Sensitized Solar Cells ◽  
Organic Sensitizers

New D-π-A configured organic sensitizers featuring halogen-substituted oxindole-bridged acceptor units have been synthesized for dye-sensitized solar cells applications. Among fluorine, bromine, and iodine substitution, the cell based on bromine incorporated dye exhibited the highest efficiency. The oxindoles in these sensitizers were found to assist the electron injection through the chelation of their amide carbonyl groups to the TiO2 surface. This study provides an alternate approach for future rational dye design to gain excellent DSSC performance.

scholarly journals Interacting Ru(bpy) 3 2 + Dye Molecules and TiO2 Semiconductor in Dye-Sensitized Solar Cells

Mathematics ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 841 ◽  
Author(s):  
Sasipim Putthikorn ◽  
Thien Tran-Duc ◽  
Ngamta Thamwattana ◽  
James M. Hill ◽  
Duangkamon Baowan
Keyword(s):  
Solar Cells ◽  
Continuum Model ◽  
Minimum Energy ◽  
Dye Sensitized Solar Cells ◽  
Nanoporous Structure ◽  
Dye Molecules ◽  
Energy Position ◽  
Alternative Source ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Solar energy is an alternative source of energy that can be used to replace fossil fuels. Various types of solar cells have been developed to harvest this seemingly endless supply of energy, leading to the construction of solar cell devices, such as dye-sensitized solar cells. An important factor that affects energy conversion efficiency of dye-sensitized solar cells is the distribution of dye molecules within the porous semiconductor (TiO 2 ). In this paper, we formulate a continuum model for the interaction between the dye molecule Tris(2,2 ′ -bipyridyl)ruthenium(II) (Ru(bpy) 3 2 + ) and titanium dioxide (TiO 2 ) semiconductor. We obtain the equilibrium position at the minimum energy position between the dye molecules and between the dye and TiO 2 nanoporous structure. Our main outcome is an analytical expression for the energy of the two molecules as a function of their sizes. We also show that the interaction energy obtained using the continuum model is in close agreement with molecular dynamics simulations.

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