TITLE

Reduction of contact resistance at terminations of bismuth wire arrays

AUTHOR(S)
Hasegawa, Yasuhiro; Ishikawa, Yoshiaki; Shirai, Hajime; Morita, Hiroyuki; Kurokouchi, Akio; Wada, Kentarou; Komine, Takashi; Nakamura, Hiroaki
PUB. DATE
November 2005
SOURCE
Review of Scientific Instruments;Nov2005, Vol. 76 Issue 11, p113902
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Contact resistance at the terminations of bismuth wire arrays of 25-μm diam is reduced by ion plating of a titanium interlayer 100 nm upon the wire ends. One-thousand (1000)-nm-thick copper electrodes are ion plated upon the titanium. Copper probe electrodes are then attached using Pb-Sn solder. The temperature dependences of the Seebeck coefficient and resistance are measured upon heating from 25 to 300 K and the results compared with those for the polycrystalline bulk bismuth sample. The resistivity of the microwire array is found to be 1.37 μΩ m at 300 K. Based on the similarities between the temperature dependences of resistivity and Seebeck coefficient for the wire and bulk samples, contact resistance of the wires is considered to have been completely eliminated. This technique makes it possible to simultaneously estimate the resistivity and Seebeck coefficient for nanowire arrays of thermoelectric materials.
ACCESSION #
19215148

 

Related Articles

  • Investigation of violin mode Q for wire of various materials. Dawid, Daryush J.; Kawamura, Seiji // Review of Scientific Instruments;Dec1997, Vol. 68 Issue 12, p4600 

    Presents an investigation of violin mode Q for wires of various materials. Violin mode loss; Measurement of violin mode Q.

  • Fabrication of ultrathin drawn Pt wires by an extension of the Wollaston process. Sacharoff, A. C.; Westervelt, R. M.; Bevk, J. // Review of Scientific Instruments;Jul1985, Vol. 56 Issue 7, p1344 

    We have produced single ultrathin Pt wires with diameters as small as 80 Ã…, using an extension of the Wollaston composite drawing process. These wires were used in experiments to test the theory of quasi-one-dimensional electronic localization and interaction effects at liquid-helium...

  • Resonant phase shift technique for the measurement of small changes in grounded capacitors. Miller, G. L.; Wagner, E. R.; Sleator, T. // Review of Scientific Instruments;Apr90, Vol. 61 Issue 4, p1267 

    A simple technique has been developed for the high resolution measurement of small changes in capacitors which have one grounded electrode. The capacitor is arranged to be the tuning element in a series resonant LC tank circuit that is driven by a transistor emitter follower. Signal information...

  • A cell for x-ray absorption studies of the emersed electrochemical interphase. Hansen, Galen J.; O’Grady, William E. // Review of Scientific Instruments;Aug1990, Vol. 61 Issue 8, p2127 

    A cell has been constructed which allows the electrochemical interphase on electrode surfaces to be studied ex situ using glancing angle x-ray and gas phase electron yield detection. The various components of the cell are described. The electrode and interphase are emersed using the thin strip...

  • Microstructural effect on the antimicrobial efficacy of arc ion plated TiO2. Chung, C. J.; Lin, H. I.; He, J. L. // Journal of Materials Research;Nov2007, Vol. 22 Issue 11, p23 

    Photocatalytic titanium dioxide coatings prepared via various processes have been developed for antimicrobial purposes. Among them is arc ion plating, which may provide more advantages than other processes such as high growth rate, strong film adhesion, as well as the ability to obtain anatase...

  • Alignment visualization using electroconvection of planar nematics. Bock, T. M.; Bla¨sing, J.; Frette, V.; Rehberg, I. // Review of Scientific Instruments;Jul2000, Vol. 71 Issue 7 

    In electroconvection experiments with planarly aligned nematic liquid crystals the director orientation is, conventionally, fixed through a mechanical treatment (rubbing) of the polymer-coated electrodes. Without rubbing, on the other hand, the flow direction during sample filling imposes the...

  • The Biologists Toolbox.  // BioScience;Jun86, Vol. 36 Issue 6, p388 

    Mentions several pieces of scientific equipment. Photometric detection of inorganic ions; Electro-cell fusion chambers; Flat surface pH electrode.

  • High-accuracy oxygen polarograph for photosynthetic systems. Meunier, P. C.; Popovic, R. // Review of Scientific Instruments;Mar88, Vol. 59 Issue 3, p486 

    A new system is presented here, whose design is based on the electrochemical phenomena occurring on the platinum electrode that we examined before [P. Meunier and R. Popovic (unpublished)]. The architecture of the system is articulated around an IBM-PC computer which controls the polarization of...

  • Properties of a four-electrode adjustable electron mirror as an aberration corrector. Shao, Zhifeng; Wu, Xiao Dong // Review of Scientific Instruments;Apr90, Vol. 61 Issue 4, p1230 

    A numerical analysis of a four-electrode electron mirror is presented. It is shown that this system can have adjustable aberration coefficients, opposite to the aberrations of conventional electron optical systems. Therefore, it is possible to use such an electron mirror as an aberration...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics