학술논문
Prospects for Peltier cooling of the cuprate superconductors
Document Type
Conference
Author
Source
Seventeenth International Conference on Thermoelectrics. Proceedings ICT98 (Cat. No.98TH8365) Thermoelectrics Thermoelectrics, 1998. Proceedings ICT 98. XVII International Conference on. :491-494 1998
Subject
Language
ISSN
1094-2734
Abstract
The figure of merit z of commercial Peltier modules has been measured to drop from z=2.3/spl times/10/sup -3/ K/sup -1/ with the warm end near 295 K to z=4/spl times/10/sup -4/ K/sup -1/ with the warm end at 80 K. Therefore, for reaching the superconducting temperature range even for the cuprates with the highest critical temperature T/sub c//spl ap/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 Bi/sub 2-x/Sb/sub x/Te/sub 3-y/Se/sub y/ showing improved values of z at 150 K and below. We have studied in particular the influence of sintering.