Journal
RSC ADVANCES
Volume 10, Issue 45, Pages 26658-26663Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ra02457k
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Funding
- National Natural Science Foundation of China [21476262]
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BiFeO(3)thin films were spin coated onto FTO. BiFeO3/BiOI composites have been successfully synthesized by an electrochemical deposition method. The morphology, structure and optical absorption properties of the as-synthesized samples were characterizedviaXRD, SEM, and UV-Vis DRS. The effect of the BiOI electrodeposition cycles on the photoelectrochemical properties of the BiFeO3/BiOI composites were investigated. The results showed that the photoelectrochemical properties were enhanced under simulated solar light. The composite could achieve an optimum photocurrent density of 16.03 mu A cm(-2)at 0 V (vs.Ag/AgCl), which is more than twice that of pure BiFeO(3)thin films (6.3 mu A cm(-2)). In addition, the Mott-Schottky curves indicate an improvement in the carrier density of the composite. The enhanced photoelectrochemical properties of the composites can be attributed to the formation of a heterojunction at the interface and the band bending of the ferroelectric material BiFeO3.
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