Effect of Few-Layered Graphene-Based CdO Nanocomposite-Enhanced Power Conversion Efficiency of Dye-Sensitized Solar Cell

Bykkam, Satish; Bikshalu, Kalagadda; Kalagadda, Venkateswara Rao; Ahmadipour, Mohsen; Chakra, Ch. Shilpa; Rajendar, V.

doi:10.1007/s11664-017-5798-9

Cited by 5 publications

(1 citation statement)

References 34 publications

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“…In this regard, there have been several attempts to develop stable solar-sensitive dyes [3,6] and electrolytes [6,7]. Similarly, developing the photoanode has been investigated by altering the type of the mesoporous film that is coated over the photo anode glass, such as TiO 2 nanofibers [8,9], ZnO and ZnO/TiO 2 nanocomposite [10,11], SnO 2 [12,13], or CdO [14]. These oxides are mixed with the organometallic dye to form the photoanode of the DSSC.…”

Section: The Non-precious Counter Electrodementioning

confidence: 99%

Facile Synthesis and Characterization of Two Dimensional SnO2-Decorated Graphene Oxide as an Effective Counter Electrode in the DSSC

2019

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SnO2-decorated graphene oxide (SnO2/GO) was synthesized by the modified Hummers’s method, followed by a chemical incorporation of SnO2 nanoparticles. Then, the nanocomposite was used as anon-precious counter electrode in a dye-sensitized solar cell (DSSC). Although GO has a relatively poor electrical conductivity depending essentially on the extent of the graphite oxidation, presence of SnO2 enhanced its structural and electrochemical properties. The Pt-free counter electrode exhibited a distinct catalytic activity toward iodine reduction and a low resistance to electron transfer. Moreover, the decorated GO provided extra active sites for reducing I3− at the interface of the CE/electrolyte. In addition, the similarity of the dopant in the GO film and the fluorine-doped tin oxide (FTO) substrate promoted a strong assimilation between them. Therefore, SnO2-decorated GO, as a counter electrode, revealed an enhanced photon to electron conversion efficiency of 4.57%. Consequently, the prepared SnO2/GO can be sorted as an auspicious counter electrode for DSSCs.

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