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Rapidly Forming the Chemical Bond Titania–Carbon in Hybrid Composite TiO2/Reduced Graphene Oxide to Enhance the Efficiency of Dye-Sensitized Solar Cells
Hybrid composite TiO 2 /reduced graphene oxide (TiO 2 /rGO) is considered as a potential photoanode for dye-sensitized solar cells (DSSC) due to their excellent charge transport. This work aimed to prepare the composite TiO 2 /rGO from TiO 2 and GO via a facile reduction step by ascorbic acid and an...
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Published in: | Arabian journal for science and engineering (2011) 2022, Vol.47 (1), p.387-395 |
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Main Authors: | , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Hybrid composite TiO
2
/reduced graphene oxide (TiO
2
/rGO) is considered as a potential photoanode for dye-sensitized solar cells (DSSC) due to their excellent charge transport. This work aimed to prepare the composite TiO
2
/rGO from TiO
2
and GO via a facile reduction step by ascorbic acid and annealing step at 450 °C. Incorporation 1%wt rGO into TiO
2
photoanode can boost the overall performance of DSSC with the photocurrent of 13.5 mA/cm
2
and the efficiency of 6.1% which is 37% enhanced than the bare TiO
2
photoanode. The XPS, Raman spectroscopy and FT–IR results revealed the formation of the chemical bonding titania–carbon in composites TiO
2
/rGO-1% by ex-situ preparation. The interfacial charge transfer through chemical bonds significantly improves the photoelectrons transport and suppresses the recombination of electron holes in TiO
2
structure. |
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ISSN: | 2193-567X 1319-8025 2191-4281 |
DOI: | 10.1007/s13369-021-05462-5 |