Manipulation of charge transfer and transport in plasmonic-ferroelectric hybrids for photoelectrochemical applications

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2016
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Wang, Zhijie
Cao, Dawei
Wen, Liaoyong
Xu, Rui
Mi, Yan
Zhan, Zhibing
Nasori, Nasori
Lei, Yong
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Utilizing plasmonic nanostructures for efficient and flexible conversion of solar energy into electricity or fuel presents a new paradigm in photovoltaics and photoelectrochemistry research. In a conventional photoelectrochemical cell, consisting of a plasmonic structure in contact with a semiconductor, the type of photoelectrochemical reaction is determined by the band bending at the semiconductor/electrolyte interface. The nature of the reaction is thus hard to tune. Here instead of using a semiconductor, we employed a ferroelectric material, Pb(Zr,Ti)O3 (PZT). By depositing gold nanoparticle arrays and PZT films on ITO substrates, and studying the photocurrent as well as the femtosecond transient absorbance in different configurations, we demonstrate an effective charge transfer between the nanoparticle array and PZT. Most importantly, we show that the photocurrent can be tuned by nearly an order of magnitude when changing the ferroelectric polarization in PZT, demonstrating a versatile and tunable system for energy harvesting.

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ISO 690WANG, Zhijie, Dawei CAO, Liaoyong WEN, Rui XU, Manuel OBERGFELL, Yan MI, Zhibing ZHAN, Nasori NASORI, Jure DEMSAR, Yong LEI, 2016. Manipulation of charge transfer and transport in plasmonic-ferroelectric hybrids for photoelectrochemical applications. In: Nature Communications. 2016, 7, 10348. eISSN 2041-1723. Available under: doi: 10.1038/ncomms10348
BibTex
@article{Wang2016Manip-40114,
  year={2016},
  doi={10.1038/ncomms10348},
  title={Manipulation of charge transfer and transport in plasmonic-ferroelectric hybrids for photoelectrochemical applications},
  volume={7},
  journal={Nature Communications},
  author={Wang, Zhijie and Cao, Dawei and Wen, Liaoyong and Xu, Rui and Obergfell, Manuel and Mi, Yan and Zhan, Zhibing and Nasori, Nasori and Demsar, Jure and Lei, Yong},
  note={Article Number: 10348}
}
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