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專利授權區

專利授權區
專利名稱(中)	低電阻之熱電材料及其製備方法
專利名稱(英)	Thermoelectric materials with low electrical resistivity and manufacture thereof
專利家族	中華民國：I483439 美國：8,398,897
專利權人	國立清華大學 100%
發明人	吳欣潔,陳信文
技術領域	材料化工,能源科技

專利摘要(中)
Thermoelectric material has attracted more attentions as a promising energy material in recent years. Research nowadays are devoted to improvement of figure－of－merit (zT=S.sup.2T/.rho..kappa.). Motivated by p－type AgSbTe.sub.2 compound, ternary Ag－－Sb－－Te has been reported as an important thermoelectric system. Although ternary AgSbTe.sub.2 compound has been considered as a candidate for thermoelectric materials with the advantages of low thermal conductivity (.kappa..sub.p=0.6 WK.sup.－1 m.sup.－1), the relatively high electrical resistivity (.rho.=7.510.sup.－3 .OMEGA.cm) has limited its applications. This invention disclosed brand－new Ag－－Sb－－Te bulk materials with very fine microstructures that nanoscale Ag.sub.2Te phase precipitate uniformly in the multi－phase matrix through class I reaction, liquid=Ag.sub.2Te＋AgSbTe.sub.2＋.delta.. Moreover, the electrical resistivity (.rho.) measured by four－probe method is as low as 8.410.sup.－4 (.OMEGA.cm) at room temperature, which guarantees the promise of those ternary bulk materials.

專利摘要(中)

Thermoelectric material has attracted more attentions as a promising energy material in recent years. Research nowadays are devoted to improvement of figure－of－merit (zT=S.sup.2T/.rho..kappa.). Motivated by p－type AgSbTe.sub.2 compound, ternary Ag－－Sb－－Te has been reported as an important thermoelectric system. Although ternary AgSbTe.sub.2 compound has been considered as a candidate for thermoelectric materials with the advantages of low thermal conductivity (.kappa..sub.p=0.6 WK.sup.－1 m.sup.－1), the relatively high electrical resistivity (.rho.=7.5*10.sup.－3 .OMEGA.cm) has limited its applications. This invention disclosed brand－new Ag－－Sb－－Te bulk materials with very fine microstructures that nanoscale Ag.sub.2Te phase precipitate uniformly in the multi－phase matrix through class I reaction, liquid=Ag.sub.2Te＋AgSbTe.sub.2＋.delta.. Moreover, the electrical resistivity (.rho.) measured by four－probe method is as low as 8.4*10.sup.－4 (.OMEGA.cm) at room temperature, which guarantees the promise of those ternary bulk materials.

聯絡資訊
承辦人姓名	周家鳳
承辦人電話	03-5715131 #34576
承辦人Email	cf.chou@mx.nthu.edu.tw