Investigation of Dye Regeneration Kinetics in Sensitized Solar Cells by Scanning Electrochemical Microscopy

ChemPhysChem ◽  
2014 ◽  
Vol 15 (6) ◽  
pp. 1182-1189 ◽  
Author(s):  
Bingyan Zhang ◽  
Xiaobao Xu ◽  
Xiaofan Zhang ◽  
Dekang Huang ◽  
Shaohui Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Scanning Electrochemical Microscopy ◽  
Dye Regeneration ◽  
Sensitized Solar Cells ◽  
Electrochemical Microscopy

scholarly journals Effect of TiO2 Photoanodes Morphology and Dye Structure on Dye-Regeneration Kinetics Investigated by Scanning Electrochemical Microscopy

Electrochem ◽  
2020 ◽  
Vol 1 (3) ◽  
pp. 329-343
Author(s):  
Sabina Scarabino ◽  
Kazuteru Nonomura ◽  
Nick Vlachopoulos ◽  
Anders Hagfeldt ◽  
Gunther Wittstock
Keyword(s):  
Porous Electrode ◽  
Dye Sensitized Solar Cells ◽  
Scanning Electrochemical Microscopy ◽  
Transfer Reactions ◽  
Dye Sensitized ◽  
Ticl4 Treatment ◽  
Back Electron Transfer ◽  
Dye Regeneration ◽  
Sensitized Solar Cells ◽  
Electrochemical Microscopy

The dye regeneration in dye-sensitized solar cells (DSSCs) is improved by optimizing the charge separation at the level of the sensitized semiconductor treatment of the mesoporous electrode by TiCl4 that passivates the surface for back electron transfer reactions. The dye-regeneration kinetics is analyzed for DN216- and D358-sensitized porous TiO2 electrodes with and without a TiCl4 treatment by means of scanning electrochemical microscopy (SECM). Different mass transport limitation of the [Co(bpy)3]3+ mediator through the porous electrode is found for the comparison of the structurally similar dyes but cannot be detected for the thin layer introduced by the TiCl4 treatment. Phototransient measurements are conducted directly in the SECM cell without any intermediated sample manipulation. The results from those measurements corroborate the findings from steady state SECM measurements.

Using Scanning Electrochemical Microscopy to Examine Copper(I) Sensitizers for Dye-Sensitized Solar Cells

2014 ◽  
Vol 118 (30) ◽  
pp. 16912-16918 ◽  
Author(s):  
Colin J. Martin ◽  
Biljana Bozic-Weber ◽  
Edwin C. Constable ◽  
Thilo Glatzel ◽  
Catherine E. Housecroft ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Scanning Electrochemical Microscopy ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Electrochemical Microscopy

Investigation of Regeneration Kinetics in Quantum-Dots-Sensitized Solar Cells with Scanning Electrochemical Microscopy

2014 ◽  
Vol 6 (23) ◽  
pp. 20913-20918 ◽  
Author(s):  
Bingyan Zhang ◽  
Huailiang Yuan ◽  
Xiaofan Zhang ◽  
Dekang Huang ◽  
Shaohui Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Scanning Electrochemical Microscopy ◽  
Sensitized Solar Cells ◽  
Electrochemical Microscopy

scholarly journals Development of scanning electrochemical microscopy (SECM) techniques for the optimization of dye sensitized solar cells

2014 ◽  
Vol 119 ◽  
pp. 86-91 ◽  
Author(s):  
Colin J. Martin ◽  
Biljana Bozic-Weber ◽  
Edwin C. Constable ◽  
Thilo Glatzel ◽  
Catherine E. Housecroft ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Scanning Electrochemical Microscopy ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Electrochemical Microscopy

Kinetics of dye regeneration in liquid electrolyte unveils efficiency of 10.5% in dye-sensitized solar cells

2018 ◽  
Vol 6 (42) ◽  
pp. 11444-11456 ◽  
Author(s):  
Jonnadula Venkata Suman Krishna ◽  
Narra Vamsi Krishna ◽  
Towhid H. Chowdhury ◽  
Suryaprakash Singh ◽  
Idriss Bedja ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Liquid Electrolyte ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Dye Regeneration ◽  
Sensitized Solar Cells ◽  
Kinetics Of

We have designed and synthesised four novel porphyrin sensitizers for dye-sensitized solar cell applications and shown power conversion efficiency of 10.5%.

A polymer and graphene layer to increase dye regeneration and suppress back electron transfer in dye sensitized solar cells

2017 ◽  
Vol 53 (49) ◽  
pp. 6629-6632 ◽  
Author(s):  
Vediappan Sudhakar ◽  
Arulraj Arulkashmir ◽  
Kothandam Krishnamoorthy
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Graphene Layer ◽  
Dye Sensitized Solar Cells ◽  
Blocking Layer ◽  
Dye Sensitized ◽  
Back Electron Transfer ◽  
Dye Regeneration ◽  
Sensitized Solar Cells

A polymer–graphene blocking layer decreases back electron transfer and increases dye regeneration that improved the DSSC efficiency to 10.4%.

scholarly journals Fused Thiazine Tethered Metal-Free Dyes for Dye Sensitized Solar Cells: A Computational Investigation

2021 ◽  
Vol 33 (10) ◽  
pp. 2373-2378
Author(s):  
K. Gokula Krishnan ◽  
V. Saravanan ◽  
C. Udhaya Kumar ◽  
C. Ramalingan
Keyword(s):  
Solar Cells ◽  
Driving Forces ◽  
Dye Sensitized Solar Cells ◽  
Computational Studies ◽  
Computational Investigation ◽  
Dye Sensitized ◽  
B3lyp Method ◽  
Harvesting Efficiency ◽  
Dye Regeneration ◽  
Sensitized Solar Cells

Three novel cyanoacetamide decorated phenothiazines (1a-c) have been designed. Structural and photo-physical properties of the molecules 1a-c have been investigated. To better realize the charge transport process involved in the dye-sensitized solar cells (DSSCs), computational studies have been performed using B3LYP and CAM-B3LYP method for the dyes 1a-c. Theoretical findings for DSSCs include LHE (light-harvesting efficiency) and driving forces such as electron injection (ΔGinject) and dye regeneration have been calculated to envisage the most appropriate dyes for the application of DSSC.

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