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 |
|---|---|
| Title of host publication | Materials Research Society Symposium Proceedings |
| Pages | 317-322 |
| Number of pages | 6 |
| Volume | 886 |
| Publication status | Published - 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 | United States |
| City | Boston, MA |
| Period | 11/28/05 → 12/1/05 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
Cite this
Investigation of low resistance contacts to Pb-Sb-Ag-Te (LAST) materials for module fabrication. / D'Angelo, Jonathan; Short, Jarrod L.; Downey, Adam D.; Pajor, Michael A.; Hogan, Timothy P.; Chung, Duck Young; Kanatzidis, Mercouri G; Timm, Ed; Schock, Harold.
Materials Research Society Symposium Proceedings. Vol. 886 2006. p. 317-322.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
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
Y1 - 2006
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
ER -