{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T22:00:39Z","timestamp":1790373639463,"version":"4.1.0"},"reference-count":56,"publisher":"Wiley","issue":"17","license":[{"start":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T00:00:00Z","timestamp":1768435200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T00:00:00Z","timestamp":1768435200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100020959","name":"JST-Mirai Program","doi-asserted-by":"publisher","award":["JPMJMI19A1"],"award-info":[{"award-number":["JPMJMI19A1"]}],"id":[{"id":"10.13039\/501100020959","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Science"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    To achieve high conversion efficiency in thermoelectric (TE) modules, not only thermoelectric materials (TEMs) with high figure\u2010of\u2010merit\n                    <jats:italic>zT<\/jats:italic>\n                    but also the optimization of thermoelectric interface materials (TEiMs) is required. For TEMs, enhancing\n                    <jats:italic>zT<\/jats:italic>\n                    relies on increasing power factor PF and lowering thermal conductivity\n                    <jats:italic>\u03ba<\/jats:italic>\n                    , while for TEiMs, high electrical conductivity and\n                    <jats:italic>\u03ba<\/jats:italic>\n                    are essential, which highlights the importance of the integrated design of TEMs and TEiMs. In this work, we select p\u2010type MgAgSb as the object and construct a TE property mapping of the integrated MgAgSb\u2013MgCuSb two\u2010phase system by tuning the Ag\/Cu ratio. Based on the thermoelectric property mapping, Ag\u2010rich compositions exhibit superior PF and\n                    <jats:italic>zT<\/jats:italic>\n                    values for TEM, maximized in PF\u223c21 \u00b5W cm\n                    <jats:sup>\u22121<\/jats:sup>\n                    K\n                    <jats:sup>\u22122<\/jats:sup>\n                    ,\n                    <jats:italic>zT<\/jats:italic>\n                    = 1.12 for MgAg\n                    <jats:sub>0.97<\/jats:sub>\n                    Cu\n                    <jats:sub>0.03<\/jats:sub>\n                    Sb. Conversely, Cu\u2010rich composition MgAg\n                    <jats:sub>0.05<\/jats:sub>\n                    Cu\n                    <jats:sub>0.95<\/jats:sub>\n                    Sb is identified as the optimal TEiM for its low contact resistance and superior carrier and phonon transport properties, reducing energy loss. A two\u2010pair thermoelectric module integrated with n\u2010type Mg\n                    <jats:sub>3<\/jats:sub>\n                    (Sb, Bi)\n                    <jats:sub>2<\/jats:sub>\n                    is successfully fabricated, yielding a peak conversion efficiency of \u223c7.2%, thereby advancing the performance of current Mg\u2010based TE modules. Overall, this study realizes the synergistic optimization of high\u2010performance TE materials and compatible TE interface materials, paving the way for the fabrication of efficient and scalable TE modules.\n                  <\/jats:p>","DOI":"10.1002\/advs.202520889","type":"journal-article","created":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T08:44:52Z","timestamp":1768466692000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Thermoelectric Property Mapping for High\u2010Performance Integrated MgAgSb\u2010MgCuSb System"],"prefix":"10.1002","volume":"13","author":[{"given":"Jiankang","family":"Li","sequence":"first","affiliation":[{"name":"Research Center for Materials Nanoarchitectonics (MANA) National Institute for Materials Science (NIMS)  Tsukuba Japan"},{"name":"Graduate School of Pure and Applied Sciences University of Tsukuba  Tsukuba 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