Journal
CHEMICAL PHYSICS LETTERS
Volume 483, Issue 1-3, Pages 124-127Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2009.10.066
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Funding
- Ministry of Education and Human Resources Development) of Chungju National University
- Ministry of Knowledge Economy, Republic of Korea
- EPSRC [EP/F033605/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F033605/1] Funding Source: researchfish
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A mixture of graphene oxide (GO) and TiO2 nanocomposites was reduced photocatalytically by UV-irradiation and applied as interfacial layer between a fluorine doped tin oxide (FTO) layer and a nanocrystalline TiO2 film. Impedance spectra implied a decreased back-transport reaction of electrons. The graphene-TiO2 interfacial layer effectively reduced the contact between I-3(-) ions in the electrolyte and FTO layer, which inhibited back-transport reaction. The introduction of graphene-TiO2 increased V-oc by 54 mV and the photoconversion efficiency was improved from 4.89% to 5.26%. (C) 2009 Published by Elsevier B.V.
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