Journal
CHEMISTRY LETTERS
Volume 50, Issue 2, Pages 374-377Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.200790
Keywords
Localized surface plasmon resonance; Hot-carrier; Nickel oxide
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Funding
- JSPS KAKENHI [JP18H05205, JP18K05053, JP20H05083]
- Nanotechnology Platform (Hokkaido University)
- Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials (Five-Star Alliance) of MEXT
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The fabrication of a NiO/Au-NPs/TiO2 structure with Au-NPs placed in the p-n junction revealed that the main driving force for hole separation came from the local electric field of the depletion layer in the p-n junction of TiO2 and NiO, rather than the Schottky junction of Au and NiO.
We fabricated a p-type nickel oxide (NiO)/gold nanoparticle (Au-NP)/n-type titanium dioxide (TiO2) structure in which Au-NPs are placed in the p-n junction of TiO2 and NiO. The photoelectric properties of NiO/Au-NPs/TiO2 suggest that the main driving force of the hole separation from Au-NPs to NiO is the local electric field of the depletion layer of the p-n junction of TiO2 and NiO rather than the Schottky junction of Au and NiO.
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