{"title":"Progress towards the preparation of (TiTe/sub 2/)/sub 3/(Bi/sub 2/Te/sub 3/)/sub y/(TiTe/sub 2/)/sub 3/(Sb/sub 2/Te/sub 3/)/sub z/ superlattices","authors":"R. Rostek, B. Schmid, C. Mortensen, D.C. Johnson","doi":"10.1109/ICT.2005.1519937","DOIUrl":null,"url":null,"abstract":"Superlattices based on the thermoelectric standard compounds Bi/sub 2/Te/sub 3/ and Sb/sub 2/Te/sub 3/ demonstrate enhanced ZT values. The formation of the superlattice (Bi/sub 2/Te/sub 3/)/sub x/(Sb/sub 2/Te/sub 3/)/sub y/ through the modulated elemental reactants (MER) approach is hindered by interdiffusion of the Bi/sub 2/Te/sub 3/ and Sb/sub 2/Te/sub 3/ layers at the necessary annealing temperatures. TiTe/sub 2/ has the potential to act as a diffusion barrier between the Bi/sub 2/Te/sub 3/ and Sb/sub 2/Te/sub 3/ layers of the superlattice. (TiTe/sub 2/)/sub 3/(Bi/sub 2/Te/sub 3/)/sub y/(TiTe/sub 2/)/sub 3/(Sb/sub 2/Te/sub 3/)/sub z/ superlattices were synthesized using the MER approach, successfully separating the different V-VI layers by TiTe/sub 2/. This study shows that the number of Bi/sub 2/Te/sub 3/ and Sb/sub 2/Te/sub 3/ layers can be precisely controlled using the MER method.","PeriodicalId":422400,"journal":{"name":"ICT 2005. 24th International Conference on Thermoelectrics, 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ICT 2005. 24th International Conference on Thermoelectrics, 2005.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICT.2005.1519937","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Superlattices based on the thermoelectric standard compounds Bi/sub 2/Te/sub 3/ and Sb/sub 2/Te/sub 3/ demonstrate enhanced ZT values. The formation of the superlattice (Bi/sub 2/Te/sub 3/)/sub x/(Sb/sub 2/Te/sub 3/)/sub y/ through the modulated elemental reactants (MER) approach is hindered by interdiffusion of the Bi/sub 2/Te/sub 3/ and Sb/sub 2/Te/sub 3/ layers at the necessary annealing temperatures. TiTe/sub 2/ has the potential to act as a diffusion barrier between the Bi/sub 2/Te/sub 3/ and Sb/sub 2/Te/sub 3/ layers of the superlattice. (TiTe/sub 2/)/sub 3/(Bi/sub 2/Te/sub 3/)/sub y/(TiTe/sub 2/)/sub 3/(Sb/sub 2/Te/sub 3/)/sub z/ superlattices were synthesized using the MER approach, successfully separating the different V-VI layers by TiTe/sub 2/. This study shows that the number of Bi/sub 2/Te/sub 3/ and Sb/sub 2/Te/sub 3/ layers can be precisely controlled using the MER method.
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