Application of Electrochemical Impedance Spectroscopy in Characterization of Mass- and Charge Transfer Processes in Dye-Sensitized Solar Cell

2012 ◽  
Keyword(s):  
Charge Transfer ◽  
Solar Cell ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Transfer Processes

scholarly journals Influence of Different Cations of N3 Dyes on Their Photovoltaic Performance and Stability

2009 ◽  
Vol 2009 ◽  
pp. 1-7 ◽  
Author(s):  
Luísa Andrade ◽  
Shaik M. Zakeeruddin ◽  
Mohammad K. Nazeeruddin ◽  
Helena Aguilar Ribeiro ◽  
Adélio Mendes ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sodium Cations ◽  
Sensitized Solar Cells

The N3 dye was modified by substituting two of its protons by potassium or sodium cations. The performance and stability of dye-sensitized solar cells incorporating the new dyes were evaluated under light soaking(1000 W⋅m-2)at50∘C. Photocurrent measurements demonstrated that proton substitution by potassium cations rends the system more stable. Further characterization of the potassium-based devices was performed by electrochemical impedance spectroscopy to investigate the charge-transfer phenomena occurring at the different interfaces of the cells.

scholarly journals Organosoluble Starch-Cellulose Binary Polymer Blend as a Quasi-Solid Electrolyte in a Dye-Sensitized Solar Cell

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 516 ◽  
Author(s):  
Vidhya Selvanathan ◽  
Rosiyah Yahya ◽  
Mohd Hafidz Ruslan ◽  
Kamaruzzaman Sopian ◽  
Nowshad Amin ◽  
...  
Keyword(s):  
Solar Cell ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Viscoelastic Properties ◽  
Electrochemical Impedance ◽  
The Other ◽  
Dye Sensitized Solar Cell ◽  
Photoconversion Efficiency ◽  
Dye Sensitized ◽  
Binary Polymer

This work is a pioneer attempt to fabricate quasi-solid dye-sensitized solar cell (QSDDSC) based on organosoluble starch derivative. Rheological characterizations of the PhSt-HEC blend based gels exhibited viscoelastic properties favorable for electrolyte fabrication. From amplitude sweep and tack test analyses, it was evident that the inclusion of LiI improved the rigidity and tack property of the gels. On the other hand, the opposite was true for TPAI based gels, which resulted in less rigid and tacky electrolytes. The crystallinity of the gels was found to decline with increasing amount of salt in both systems. The highest photoconversion efficiency of 3.94% was recorded upon addition of 12.5 wt % TPAI and this value is one of the highest DSSC performance recorded for starch based electrolytes. From electrochemical impedance spectroscopy (EIS), it is deduced that the steric hindrance imposed by bulky cations aids in hindering recombination between photoanode and electrolyte.

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