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- Kwang-Soon Ahn
- National Renewable Energy Laboratory 1 , Golden, Colorado 80401, USA
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- Yanfa Yan
- National Renewable Energy Laboratory 1 , Golden, Colorado 80401, USA
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- Moon-Sung Kang
- Samsung Advanced Institute of Technology 2 Energy and Environment Laboratory, , Yongin-si, Gyeonggi-do 446-712, Republic of Korea
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- Jin-Young Kim
- National Renewable Energy Laboratory 1 , Golden, Colorado 80401, USA
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- Sudhakar Shet
- National Renewable Energy Laboratory 1 , Golden, Colorado 80401, USA
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- Heli Wang
- National Renewable Energy Laboratory 1 , Golden, Colorado 80401, USA
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- John Turner
- National Renewable Energy Laboratory 1 , Golden, Colorado 80401, USA
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- Mowafak Al-Jassim
- National Renewable Energy Laboratory 1 , Golden, Colorado 80401, USA
説明
<jats:p>CoAl 2 O 4 – Fe 2 O 3 p-n nanocomposite electrodes were deposited on Ag-coated stainless-steel substrates and annealed at 800 °C. Their photoelectrochemical (PEC) properties were investigated and compared with that of p-type CoAl2O4 films. We found that the nanocomposite electrodes exhibit much improved PEC photoresponse as compared to the reference p-type CoAl2O4 electrodes. We speculate that the enhancement is due to the formation of a three-dimensional junction between p-type CoAl2O4 and n-type Fe2O3 nanoparticles, which improves electron-hole separation, thus reducing charge recombination upon light illumination.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 95 (2), 022116-, 2009-07-13
AIP Publishing