Investigation of low resistance contacts to Pb-Sb-Ag-Te (LAST) materials for module fabrication

Jonathan D'Angelo; Jarrod L. Short; Adam D. Downey; Michael A. Pajor; Timothy P. Hogan; Duck Young Chung; Mercouri G. Kanatzidis; Ed Timm; Harold Schock

Investigation of low resistance contacts to Pb-Sb-Ag-Te (LAST) materials for module fabrication

Jonathan D'Angelo^*, Jarrod L. Short, Adam D. Downey, Michael A. Pajor, Timothy P. Hogan, Duck Young Chung, Mercouri G. Kanatzidis, Ed Timm, Harold Schock

^*Corresponding author for this work

Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Scopus citations

Abstract

Low electrical contact resistance is essential for the fabrication of high efficiency thermoelectric generators. These contacts must be stable to high temperatures and through thermal cycling. Here we present the fabrication procedure and characterization of several contacts to Pb-Sb-Ag-Te (LAST) compounds. Contact materials investigated include tungsten, antimony, tin, nickel, and a bismuth antimony based solder. The contacts were typically deposited by an electron beam evaporation method after careful preparation of the sample surface. The resistances were measured by using the transmission line model (TLM), and ohmic behavior was verified through current vs. voltage measurements. The best contact resistivities of less than 20 μΩ·cm ² have been measured for annealed antimony to n-type LAST samples. We present these procedures for fabricating low resistance contacts and the use of these contact materials toward the fabrication of high efficiency thermoelectric generator modules.

Original language	English (US)
Title of host publication	Materials Research Society Symposium Proceedings
Pages	317-322
Number of pages	6
Volume	886
State	Published - May 8 2006
Event	2005 Materials Research Society Fall Meeting - Boston, MA, United States Duration: Nov 28 2005 → Dec 1 2005

Other

Other	2005 Materials Research Society Fall Meeting
Country/Territory	United States
City	Boston, MA
Period	11/28/05 → 12/1/05

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

Cite this

@inproceedings{65eb72f168314a9db7f14bd28524a83d,

title = "Investigation of low resistance contacts to Pb-Sb-Ag-Te (LAST) materials for module fabrication",

abstract = "Low electrical contact resistance is essential for the fabrication of high efficiency thermoelectric generators. These contacts must be stable to high temperatures and through thermal cycling. Here we present the fabrication procedure and characterization of several contacts to Pb-Sb-Ag-Te (LAST) compounds. Contact materials investigated include tungsten, antimony, tin, nickel, and a bismuth antimony based solder. The contacts were typically deposited by an electron beam evaporation method after careful preparation of the sample surface. The resistances were measured by using the transmission line model (TLM), and ohmic behavior was verified through current vs. voltage measurements. The best contact resistivities of less than 20 μΩ·cm 2 have been measured for annealed antimony to n-type LAST samples. We present these procedures for fabricating low resistance contacts and the use of these contact materials toward the fabrication of high efficiency thermoelectric generator modules.",

author = "Jonathan D'Angelo and Short, {Jarrod L.} and Downey, {Adam D.} and Pajor, {Michael A.} and Hogan, {Timothy P.} and Chung, {Duck Young} and Kanatzidis, {Mercouri G.} and Ed Timm and Harold Schock",

year = "2006",

month = may,

day = "8",

language = "English (US)",

isbn = "1558998403",

volume = "886",

pages = "317--322",

booktitle = "Materials Research Society Symposium Proceedings",

note = "2005 Materials Research Society Fall Meeting ; Conference date: 28-11-2005 Through 01-12-2005",

}

TY - GEN

T1 - Investigation of low resistance contacts to Pb-Sb-Ag-Te (LAST) materials for module fabrication

AU - D'Angelo, Jonathan

AU - Short, Jarrod L.

AU - Downey, Adam D.

AU - Pajor, Michael A.

AU - Hogan, Timothy P.

AU - Chung, Duck Young

AU - Kanatzidis, Mercouri G.

AU - Timm, Ed

AU - Schock, Harold

PY - 2006/5/8

Y1 - 2006/5/8

N2 - Low electrical contact resistance is essential for the fabrication of high efficiency thermoelectric generators. These contacts must be stable to high temperatures and through thermal cycling. Here we present the fabrication procedure and characterization of several contacts to Pb-Sb-Ag-Te (LAST) compounds. Contact materials investigated include tungsten, antimony, tin, nickel, and a bismuth antimony based solder. The contacts were typically deposited by an electron beam evaporation method after careful preparation of the sample surface. The resistances were measured by using the transmission line model (TLM), and ohmic behavior was verified through current vs. voltage measurements. The best contact resistivities of less than 20 μΩ·cm 2 have been measured for annealed antimony to n-type LAST samples. We present these procedures for fabricating low resistance contacts and the use of these contact materials toward the fabrication of high efficiency thermoelectric generator modules.

AB - Low electrical contact resistance is essential for the fabrication of high efficiency thermoelectric generators. These contacts must be stable to high temperatures and through thermal cycling. Here we present the fabrication procedure and characterization of several contacts to Pb-Sb-Ag-Te (LAST) compounds. Contact materials investigated include tungsten, antimony, tin, nickel, and a bismuth antimony based solder. The contacts were typically deposited by an electron beam evaporation method after careful preparation of the sample surface. The resistances were measured by using the transmission line model (TLM), and ohmic behavior was verified through current vs. voltage measurements. The best contact resistivities of less than 20 μΩ·cm 2 have been measured for annealed antimony to n-type LAST samples. We present these procedures for fabricating low resistance contacts and the use of these contact materials toward the fabrication of high efficiency thermoelectric generator modules.

UR - http://www.scopus.com/inward/record.url?scp=33646185179&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33646185179&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33646185179

SN - 1558998403

SN - 9781558998407

VL - 886

SP - 317

EP - 322

BT - Materials Research Society Symposium Proceedings

T2 - 2005 Materials Research Society Fall Meeting

Y2 - 28 November 2005 through 1 December 2005

ER -

Investigation of low resistance contacts to Pb-Sb-Ag-Te (LAST) materials for module fabrication

Abstract

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ASJC Scopus subject areas

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