Si (111) Electrode/electrolyte Interfacial Studied by in-situ Second Harmonic Generation

Yuan Guo; Zhen  Zhang

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Yuan Guo, Zhen Zhang. Si (111) Electrode/electrolyte Interfacial Studied by in-situ Second Harmonic Generation[J]. Chinese Journal of Chemical Physics .

Citation:

Yuan Guo, Zhen Zhang. Si (111) Electrode/electrolyte Interfacial Studied by in-situ Second Harmonic Generation[J]. Chinese Journal of Chemical Physics .

Yuan Guo, Zhen Zhang. Si (111) Electrode/electrolyte Interfacial Studied by in-situ Second Harmonic Generation[J]. Chinese Journal of Chemical Physics .

Citation:

Yuan Guo, Zhen Zhang. Si (111) Electrode/electrolyte Interfacial Studied by in-situ Second Harmonic Generation[J]. Chinese Journal of Chemical Physics .

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Si (111) Electrode/electrolyte Interfacial Studied by in-situ Second Harmonic Generation

Yuan Guo¹,
Zhen Zhang^2
,

1.
中国科学院北京化学所
2.
Institute of Chemistry Chinese Academy of Sciences

Received Date: 2020-07-22
Accepted Date: 2020-09-15
Rev Recd Date: 2020-09-01

Available Online: 2020-09-28

Abstract

Abstract

Si (111) electrode has been widely used in electrochemical and photoelectrochemical studies. The potential dependent measurements of the second harmonic generation (SHG) were performed to study Si (111) electrolyte interface. At diﬀerent azimuthal angles of the Si (111) and under diﬀerent polarization combinations, the curve of the intensity of SHG with extern potential have different form of line or parabola. A quantitative analysis showed that this differences of the potential-dependence can be explained by the isotropic and anisotropic contribution of the Si (111) electrode. The change in isotropic and anisotropic contribution of the Si (111) electrode may be attributed to the increase in doping concentration of Si (111) electrodes.