CoSe2@N-Doped Graphene Nanocomposite High-Efficiency Counter Electrode for Dye-Sensitized Solar Cells

In present study, CoSe 2, and CoSe 2 @N-doped graphene nanocomposite has been prepared in an inert atmosphere and used as a DSSC counter electrode. The fabricated nanocomposite was characterized using analytical techniques including FTIR, TGA, XRD, Raman, XPS, and BET. The assembled DSSC obtains a p...

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Bibliographic Details
Published inJournal of inorganic and organometallic polymers and materials Vol. 32; no. 7; pp. 2568 - 2577
Main Author Ahamad, Tansir
Format Journal Article
LanguageEnglish
Published New York Springer US 01.07.2022
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Dye-sensitized solar cells
Electrodes
Graphene
Inert atmospheres
Inorganic Chemistry
Nanocomposites
Organic Chemistry
Photoelectricity
Polymer Sciences
Reduction
X ray photoelectron spectroscopy
Dye-sensitized solar cell
Counter electrode
CoSe
N-doped graphene
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Summary:In present study, CoSe 2, and CoSe 2 @N-doped graphene nanocomposite has been prepared in an inert atmosphere and used as a DSSC counter electrode. The fabricated nanocomposite was characterized using analytical techniques including FTIR, TGA, XRD, Raman, XPS, and BET. The assembled DSSC obtains a photoelectric conversion efficiency (PCE) of 7.65%, which is higher than the PCE (7.19%) of the Pt electrode assembly cell under the same conditions. The promising performance of the fabricated counter electrodes may be due to the excellent surface area of the nanocomposites, the doping of heteroatoms which provide the active sites to boost the catalytic activities towards I 3 − reduction. These results illustrate the rational design of CoSe 2 @N-doped graphene nanocomposite and has great potential for replacing noble Pt for the reduction of I 3 – in DSSCs.
ISSN:1574-1443
1574-1451
DOI:10.1007/s10904-022-02356-3