4-Point Resistance Measurements of Individual Bi Nanowires

Abstract

We have synthesized single crystal bismuth nanowires by pressure injecting molten Bi into anodic alumina templates. By varying the template fabrication conditions, nanowires with diameters ranging from 10 to 200nm and lengths of ~50μm can be produced. We present a scheme for measuring the resistance of a single Bi nanowire using a 4-point measurement technique. The nanowires are found to have a 7nm thick oxide layer which causes very high contact resistance when electrodes are patterned on top of the nanowires. The oxide is found to be resilient to acid etching, but can be successfully reduced in high temperature hydrogen and ammonia environments. The reformation time of the oxide in air is found to be less than 1 minute. Focused ion beam milling is attempted as an alternate solution to oxide removal.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    R.T. Isaacson and G.A. Williams, Phys. Rev. 185, 682 (1969).

    Article  Google Scholar 

  2. 2.

    R. Hartman, Phys. Rev. 181, 1070 (1969).

    CAS  Article  Google Scholar 

  3. 3.

    Y.-M. Lin, X. Sun, M.S. Dresselhaus, Phys. Rev. B, 62, 4610 (2000).

    CAS  Article  Google Scholar 

  4. 4.

    C.F. Gallo, B.S. Chandrasekhar, and P.H. Sutter, J. Appl. Phys. 34, 144 (1963).

    CAS  Article  Google Scholar 

  5. 5.

    Z. Zhang, D. Gekhtman, M.S. Dresselhaus, and J.Y. Ying, Chem. Mater. 11, 1659 (1999).

    CAS  Article  Google Scholar 

  6. 6.

    S.B. Cronin, S. B. Cronin, Y.-M. Lin, T. Koga, J. Y. Ying, and M. S. Dresselhaus, “Transport Measurements of Individual Bismuth Nanowires”, in Molecular Electronics: MRS Symposium, edited by S.T. Pantelides, et al., Materials Research Society Press, Pittsburgh, PA, December, 1999.

    Google Scholar 

  7. 7.

    S. Cronin, Y.-M. Lin, T. Koga, X. Sun, J. Y. Ying, and M. S. Dresselhaus, “Thermoelectric Investigation of Bismuth Nanowires”, in The 18thInternational Conference on Thermoelectrics: Symposium Proceedings, Baltimore, MD, 1999.

    Google Scholar 

  8. 8.

    P.L. Gai: Direct Probing of Gas Molecules-Solid Catalyst Interactions On the Atomic Scale; Adv. Materials., 10, 1259 (1998).

    CAS  Article  Google Scholar 

  9. 9.

    P.L. Gai: Environmental-HREM of Gas-Catalyst Reactions, Topics in Catalysis, 8, 97 (1999).

    CAS  Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to Stephen B. Cronin.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Cronin, S.B., Lin, YM., Gai, P.L. et al. 4-Point Resistance Measurements of Individual Bi Nanowires. MRS Online Proceedings Library 635, C5.7 (2000). https://doi.org/10.1557/PROC-635-C5.7

Download citation