Modern Chemistry

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Silver and Copper Microstructures: The Workfunction’s Effect

Received: 09 February 2017    Accepted:     Published: 10 February 2017
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Abstract

To understand the growth mechanism of Ag and Cu nanowires we have studied the effect of workfunction on the metal nanowire growth by XRD, SEM and Potentiostat. Under the same potential and overpotential, the metal with a smaller workfunction has a higher current density, i.e. current density for Ag is higher than of Cu nanowires. Likewise metals, the plane with smaller workfunction grows faster than with the larger workfunction, thus the preferential growth plane is (220) for both metals. We argued that the current arises from electrons tunneling from metal surface to hydrated metal and hydrogen ions. The metal with a smaller workfunction has a thinner barrier for tunneling, thus leading to a higher current density. It is found that deposition method have no such effect on the structure of deposited nanowires.

DOI 10.11648/j.mc.20170501.11
Published in Modern Chemistry (Volume 5, Issue 1, February 2017)
Page(s) 1-6
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Workfunction, Electron Tunneling, Metal Nanowires, Growth

References
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Author Information
  • The State Key Laboratory of Refractories and Metallurgy, Hubei Province Key Laboratory of Systems Science in Metallurgical Process, International Research Institute for Steel Technology, Wuhan University of Science and Technology, Wuhan, P. R. China

  • The State Key Laboratory of Refractories and Metallurgy, Hubei Province Key Laboratory of Systems Science in Metallurgical Process, International Research Institute for Steel Technology, Wuhan University of Science and Technology, Wuhan, P. R. China

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    Tahir Mehmood, Aiman Mukhtar. (2017). Silver and Copper Microstructures: The Workfunction’s Effect. Modern Chemistry, 5(1), 1-6. https://doi.org/10.11648/j.mc.20170501.11

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    ACS Style

    Tahir Mehmood; Aiman Mukhtar. Silver and Copper Microstructures: The Workfunction’s Effect. Mod. Chem. 2017, 5(1), 1-6. doi: 10.11648/j.mc.20170501.11

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    AMA Style

    Tahir Mehmood, Aiman Mukhtar. Silver and Copper Microstructures: The Workfunction’s Effect. Mod Chem. 2017;5(1):1-6. doi: 10.11648/j.mc.20170501.11

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  • @article{10.11648/j.mc.20170501.11,
      author = {Tahir Mehmood and Aiman Mukhtar},
      title = {Silver and Copper Microstructures: The Workfunction’s Effect},
      journal = {Modern Chemistry},
      volume = {5},
      number = {1},
      pages = {1-6},
      doi = {10.11648/j.mc.20170501.11},
      url = {https://doi.org/10.11648/j.mc.20170501.11},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.mc.20170501.11},
      abstract = {To understand the growth mechanism of Ag and Cu nanowires we have studied the effect of workfunction on the metal nanowire growth by XRD, SEM and Potentiostat. Under the same potential and overpotential, the metal with a smaller workfunction has a higher current density, i.e. current density for Ag is higher than of Cu nanowires. Likewise metals, the plane with smaller workfunction grows faster than with the larger workfunction, thus the preferential growth plane is (220) for both metals. We argued that the current arises from electrons tunneling from metal surface to hydrated metal and hydrogen ions. The metal with a smaller workfunction has a thinner barrier for tunneling, thus leading to a higher current density. It is found that deposition method have no such effect on the structure of deposited nanowires.},
     year = {2017}
    }
    

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    T1  - Silver and Copper Microstructures: The Workfunction’s Effect
    AU  - Tahir Mehmood
    AU  - Aiman Mukhtar
    Y1  - 2017/02/10
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    AB  - To understand the growth mechanism of Ag and Cu nanowires we have studied the effect of workfunction on the metal nanowire growth by XRD, SEM and Potentiostat. Under the same potential and overpotential, the metal with a smaller workfunction has a higher current density, i.e. current density for Ag is higher than of Cu nanowires. Likewise metals, the plane with smaller workfunction grows faster than with the larger workfunction, thus the preferential growth plane is (220) for both metals. We argued that the current arises from electrons tunneling from metal surface to hydrated metal and hydrogen ions. The metal with a smaller workfunction has a thinner barrier for tunneling, thus leading to a higher current density. It is found that deposition method have no such effect on the structure of deposited nanowires.
    VL  - 5
    IS  - 1
    ER  - 

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