Huan Zhang, Yaqi Zhang, P. Yu, Li-Min Wang, Gong Li
{"title":"Preparation and Thermoelectric Properties of Novel Tellurium-Based Glassy Semiconductors","authors":"Huan Zhang, Yaqi Zhang, P. Yu, Li-Min Wang, Gong Li","doi":"10.2139/ssrn.3826730","DOIUrl":null,"url":null,"abstract":"Abstract Vitrification of Tellurium-based(Te) chalcogenid semiconductors is explored as a new route to enhance their thermoelectric properties by maximizing the degree of structural disorder to produce the minimum thermal conductivity. Ga2Te3-SnTe systems are focused in this paper and the optimized glass-forming composition is identified. Complete bulk (Ga2Te3)34(SnTe)66 glass is successfully prepared by a spark plasma sintering technique and exhibited an ultralow low thermal conductivity and high Seebeck coefficient. Together with the tunable electrical conductivity, the newly obtained Ga2Te3-SnTe glasses broaden the research scope of Te-based semiconductor glasses and also provide a new option for the development of high-performance thermoelectric materials.","PeriodicalId":10639,"journal":{"name":"Computational Materials Science eJournal","volume":"05 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Computational Materials Science eJournal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3826730","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
Abstract Vitrification of Tellurium-based(Te) chalcogenid semiconductors is explored as a new route to enhance their thermoelectric properties by maximizing the degree of structural disorder to produce the minimum thermal conductivity. Ga2Te3-SnTe systems are focused in this paper and the optimized glass-forming composition is identified. Complete bulk (Ga2Te3)34(SnTe)66 glass is successfully prepared by a spark plasma sintering technique and exhibited an ultralow low thermal conductivity and high Seebeck coefficient. Together with the tunable electrical conductivity, the newly obtained Ga2Te3-SnTe glasses broaden the research scope of Te-based semiconductor glasses and also provide a new option for the development of high-performance thermoelectric materials.
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