Revealing Interface-Assisted Charge-Transfer Mechanisms by Using Silicon Nanowires as Local Probes

Authors

  • Jindong Wang,

    1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083 (P. R. China)
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    • These authors contributed equally to this work.

  • Zhenxing Wang,

    1. Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
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    • These authors contributed equally to this work.

  • Qiaochu Li,

    1. Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
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  • Lin Gan,

    1. Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
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  • Xinjun Xu,

    1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083 (P. R. China)
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  • Prof. Lidong Li,

    Corresponding author
    1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083 (P. R. China)
    • School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083 (P. R. China)
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  • Prof. Xuefeng Guo

    Corresponding author
    1. Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
    • Center for NanoChemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
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  • We thank Yabing Qi (OIST (Japan)) for enlightening discussions. We acknowledge primary financial support from MOST (2012CB921404) and the NSFC (21225311, 51121091, 2112016, 90923015 and 21003002).

Abstract

original image

An einer Schnittstelle zwischen Halbleiter und Umgebung sind freihängende Siliciumnanodrähte (SiNWs) in direktem Kontakt mit TiO2-Quantenpunkten, deren Photoaktivität mit der intrinsischen Photoempfindlichkeit der p-Siliciumnanodrähte überlagert. Durch Ausbalancieren der konkurrierenden Mechanismen können bemerkenswerte Photoschaltungs- und starke Gleichrichtungseffekte in einer einzigen Funktionseinheit auf SiNW-Basis realisiert werden.

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