{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T04:59:31Z","timestamp":1775537971198,"version":"3.50.1"},"reference-count":41,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2022,3,11]],"date-time":"2022-03-11T00:00:00Z","timestamp":1646956800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Basic Science Center Project of National Natural Science Foundation of China","award":["51788104"],"award-info":[{"award-number":["51788104"]}]},{"DOI":"10.13039\/501100001809","name":"National Science Foundation of China","doi-asserted-by":"publisher","award":["51729201"],"award-info":[{"award-number":["51729201"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Science Foundation of China","doi-asserted-by":"publisher","award":["52172211"],"award-info":[{"award-number":["52172211"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Key Research Program of China","award":["2016YFA0201003"],"award-info":[{"award-number":["2016YFA0201003"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Because of the high carrier concentration, copper telluride (Cu2Te) has a relatively low Seebeck coefficient and high thermal conductivity, which are not good for its thermoelectric performance. To simultaneously optimize carrier concentration, lower thermal conductivity and improve the stability, BiCuTeO, an oxygen containing compound with lower carrier concentration, is in situ formed in Cu2Te by a method of combining self-propagating high-temperature synthesis (SHS) with spark plasma sintering (SPS). With the incorporation of BiCuTeO, the carrier concentration decreased from 8.1 \u00d7 1020 to 3.8 \u00d7 1020 cm\u22123, bringing the increase of power factor from ~1.91 to ~2.97 \u03bcW cm\u22121 K\u22122 at normal temperature. At the same time, thermal conductivity reduced from 2.61 to 1.48 W m\u22121 K\u22121 at 623 K. Consequently, (Cu2Te)0.95-(BiCuTeO)0.05 composite sample reached a relatively high ZT value of 0.13 at 723 K, which is 41% higher than that of Cu2Te.<\/jats:p>","DOI":"10.3390\/ma15062096","type":"journal-article","created":{"date-parts":[[2022,3,13]],"date-time":"2022-03-13T22:29:43Z","timestamp":1647210583000},"page":"2096","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Enhancing Thermoelectric Properties of (Cu2Te)1\u2212x-(BiCuTeO)x Composites by Optimizing Carrier Concentration"],"prefix":"10.3390","volume":"15","author":[{"given":"Wenyu","family":"Zhang","sequence":"first","affiliation":[{"name":"State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4359-1731","authenticated-orcid":false,"given":"Zhifang","family":"Zhou","sequence":"additional","affiliation":[{"name":"State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5118-4602","authenticated-orcid":false,"given":"Yueyang","family":"Yang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yunpeng","family":"Zheng","sequence":"additional","affiliation":[{"name":"State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yushuai","family":"Xu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mingchu","family":"Zou","sequence":"additional","affiliation":[{"name":"State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ce-Wen","family":"Nan","sequence":"additional","affiliation":[{"name":"State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuan-Hua","family":"Lin","sequence":"additional","affiliation":[{"name":"State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,3,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"106692","DOI":"10.1016\/j.nanoen.2021.106692","article-title":"Thermoelectric converter: Strategies from materials to device application","volume":"91","author":"Wu","year":"2022","journal-title":"Nano Energy"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"6826","DOI":"10.1002\/anie.201508381","article-title":"Thinking Like a Chemist: Intuition in Thermoelectric Materials","volume":"55","author":"Zeier","year":"2016","journal-title":"Angew. 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