Thiourea incorporated poly(ethylene oxide) as transparent gel polymer electrolyte for dye sensitized solar cell applications
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
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| Title |
Thiourea incorporated poly(ethylene oxide) as transparent gel polymer electrolyte for dye sensitized solar cell applications
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| Creator |
Pavithra, N.
Velayutham, D. Sorrentino, A. Anandan, S. |
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| Subject |
Solar Energy
Electrochemical Power Sources |
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| Description |
A new series of transparent gel polymer electrolytes are prepared by adding various weight percent of
thiourea coupled with poly(ethylene oxide) for the application of dye-sensitized solar cells. Coupling of
thiourea in the presence of iodine undergoes dimerization reaction to produce formamidine disulfide.
Fourier Transform Infrared spectroscopy shows that the interactions of thiourea and formamidine disulfide
with electronegative ether linkage of poly(ethylene oxide) results in conformational changes of
gel polymer electrolytes. Electrochemical impedance spectroscopy and linear sweep voltammetry experiments
reveal an increment in ionic conductivity and tri-iodide diffusion coefficient, for thiourea
modified gel polymer electrolytes. Finally, the prepared electrolytes are used as a redox mediator in dyesensitized
solar cells and the photovoltaic properties were studied. Apart from transparency, the gel
polymer electrolytes with thiorurea show higher photovoltaic properties compared to bare gel polymer
electrolyte and a maximum photocurrent efficiency of 7.17% is achieved for gel polymer electrolyte
containing 1 wt% of thiourea with a short circuit current of 11.79 mA cm�2 and open circuit voltage of
834 mV. Finally, under rear illumination, almost 90% efficiency is retained upon compared to front
illumination.
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| Publisher |
Elsevier B.V.
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| Date |
2017-04-14
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3211/1/123-2017.pdf
Pavithra, N. and Velayutham, D. and Sorrentino, A. and Anandan, S. (2017) Thiourea incorporated poly(ethylene oxide) as transparent gel polymer electrolyte for dye sensitized solar cell applications. Journal of Power Sources, 353. pp. 245-253. ISSN 0378-7753 |
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| Relation |
http://www.elsevier.com/locate/jpowsour
http://cecri.csircentral.net/3211/ |
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