Balamurugan, J. and Pandurangan, A. and Thangamuthu, R. (2013) Growth of well graphitized MWCNTs over novel 3D cubic bimetallic KIT-6 towards the development of an efficient counter electrode for dye-sensitized solar cells. Organic Electronics, 14. pp. 1833-1843.

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The well graphitized multi-walled carbon nanotubes (MWCNTs) have been effectively synthesized over ordered 3D cubic bimetallic Fe–Co-KIT-6. The synthesized MWCNTs have been successfully fabricated onto transparent conducting oxide glass and implemented as efficient low-cost, platinum-free counter electrode in dye-sensitized solar cells (DSSCs), attributing notably improved electrocatalytic activity towards iodide/tri-iodide ðI�=I� 3 Þ redox transport over conventional Pt counter electrode. Impressively, device with MWCNTs counter electrode demonstrates a high fill factor of 0.79 and power conversion efficiency up to 9.56%, which is higher than 0.78 and 9.34% for that with a conventional Pt counter electrode. Moreover, the synthesized MWCNTs counter electrode produces a charge transfer resistance of only 2.99 X cm2 towards aqueous I�=I� 3 redox electrolyte, which are several orders of magnitude lower than that of a typical Pt counter electrode (3.57 X cm2). Therefore, the synthesized MWCNTs counter electrode is believed to be a versatile candidate for further improvement of the power conversion efficiency of iodine redox couple based DSSCs

Item Type: Article
Uncontrolled Keywords: Dye-sensitized solar cells;Energy conversion efficiency;Charge transfer resistance;Counter electrodes;Multi-walled carbon nanotubes
Subjects: Nanotechnology
Electrochemical Materials Science
Depositing User: Dr. N Meyyappan
Date Deposited: 04 Jun 2013 08:25
Last Modified: 04 Jun 2013 08:25

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