Title :
Prospects for Peltier cooling of the cuprate superconductors
Author :
Straehle, J.W. ; Rath, S. ; Hans, T. ; Metzger, T. ; Nissel, T. ; Huebener, R.P. ; Kemmler-Sack, S.
Author_Institution :
Phys. Inst., Tubingen Univ., Germany
Abstract :
The figure of merit z of commercial Peltier modules has been measured to drop from z=2.3×10-3 K-1 with the warm end near 295 K to z=4×10-4 K-1 with the warm end at 80 K. Therefore, for reaching the superconducting temperature range even for the cuprates with the highest critical temperature Tc≈130 K, new thermoelectric materials with their maximum value of z around 150 K or lower must be developed. We present experimental results on p- and n-doped compounds of the family Bi2-xSbxTe3-ySey showing improved values of z at 150 K and below. We have studied in particular the influence of sintering
Keywords :
Peltier effect; bismuth alloys; cooling; high-temperature superconductors; sintering; tellurium alloys; thermoelectric conversion; 80 to 295 K; Bi2SbTe3Se; Peltier cooling; commercial Peltier modules; cuprate superconductors; figure of merit; n-Bi2-xSbxTe3-ySey; n-doped compounds; p-Bi2-xSbxTe3-ySey; p-doped compounds; sintering; superconducting temperature range; thermoelectric materials; warm end; Current measurement; Electric variables measurement; Electronics cooling; Nitrogen; Superconducting materials; Superconducting transition temperature; Superconductivity; Temperature distribution; Thermoelectricity;
Conference_Titel :
Thermoelectrics, 1998. Proceedings ICT 98. XVII International Conference on
Conference_Location :
Nagoya
Print_ISBN :
0-7803-4907-5
DOI :
10.1109/ICT.1998.740425
