{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T08:09:44Z","timestamp":1788768584159,"version":"build-2803163510"},"reference-count":46,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T00:00:00Z","timestamp":1788739200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T00:00:00Z","timestamp":1788739200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2024YFF0505900"],"award-info":[{"award-number":["2024YFF0505900"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["W2412066"],"award-info":[{"award-number":["W2412066"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003819","name":"Natural Science Foundation of Hubei Province","doi-asserted-by":"publisher","award":["2025CSA004"],"award-info":[{"award-number":["2025CSA004"]}],"id":[{"id":"10.13039\/501100003819","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Copper vacancies (V\n                    <jats:sub>Cu<\/jats:sub>\n                    ) are crucial for optimizing the thermoelectric performance of CuInTe\n                    <jats:sub>2<\/jats:sub>\n                    \u2010based compounds by governing the hole concentration and electrical transport. However, their limited solubility and restricted ability to suppress lattice thermal conductivity hinder further improvements. In this work, we have synthesized a series of single\u2010phase (Cu\n                    <jats:sub>2<\/jats:sub>\n                    Te)\n                    <jats:sub>1\u2010<\/jats:sub>\n                    <jats:italic>\n                      <jats:sub>x<\/jats:sub>\n                    <\/jats:italic>\n                    (In\n                    <jats:sub>2<\/jats:sub>\n                    Te\n                    <jats:sub>3<\/jats:sub>\n                    )\n                    <jats:italic>\n                      <jats:sub>x<\/jats:sub>\n                    <\/jats:italic>\n                    samples based on the Cu\n                    <jats:sub>2<\/jats:sub>\n                    Te\u2010In\n                    <jats:sub>2<\/jats:sub>\n                    Te\n                    <jats:sub>3<\/jats:sub>\n                    pseudo\u2010binary phase diagram, which enabled the regulation of the density of V\n                    <jats:sub>Cu<\/jats:sub>\n                    and In\n                    <jats:sub>Cu<\/jats:sub>\n                    anti\u2010site defects over a wide concentration range. The In\n                    <jats:sub>Cu<\/jats:sub>\n                    anti\u2010site defect disrupts the local lattice symmetry, driving cations away from the tetrahedral centers and softening the lattice, thereby reducing the room\u2010temperature lattice thermal conductivity from 5.9 W m\n                    <jats:sup>\u22121<\/jats:sup>\n                    K\n                    <jats:sup>\u22121<\/jats:sup>\n                    in the intrinsic sample to 1.81 W m\n                    <jats:sup>\u22121<\/jats:sup>\n                    K\n                    <jats:sup>\u22121<\/jats:sup>\n                    in (Cu\n                    <jats:sub>2<\/jats:sub>\n                    Te)\n                    <jats:sub>0.4<\/jats:sub>\n                    (In\n                    <jats:sub>2<\/jats:sub>\n                    Te\n                    <jats:sub>3<\/jats:sub>\n                    )\n                    <jats:sub>0.6<\/jats:sub>\n                    . Meanwhile, the increased concentration of V\n                    <jats:sub>Cu<\/jats:sub>\n                    leads to the broadening of impurity levels, raising the room\u2010temperature carrier concentration from 1.0 \u00d7 10\n                    <jats:sup>18<\/jats:sup>\n                    cm\n                    <jats:sup>\u22123<\/jats:sup>\n                    in intrinsic CuInTe\n                    <jats:sub>2<\/jats:sub>\n                    to 5.7 \u00d7 10\n                    <jats:sup>19<\/jats:sup>\n                    cm\n                    <jats:sup>\u22123<\/jats:sup>\n                    in (Cu\n                    <jats:sub>2<\/jats:sub>\n                    Te)\n                    <jats:sub>0.49<\/jats:sub>\n                    (In\n                    <jats:sub>2<\/jats:sub>\n                    Te\n                    <jats:sub>3<\/jats:sub>\n                    )\n                    <jats:sub>0.51<\/jats:sub>\n                    . As a result of the synergistic optimization of electrical and thermal transport properties, the (Cu\n                    <jats:sub>2<\/jats:sub>\n                    Te)\n                    <jats:sub>0.49<\/jats:sub>\n                    (In\n                    <jats:sub>2<\/jats:sub>\n                    Te\n                    <jats:sub>3<\/jats:sub>\n                    )\n                    <jats:sub>0.51<\/jats:sub>\n                    sample achieved a maximum\n                    <jats:italic>zT<\/jats:italic>\n                    of 1.21 at 873 K. This work demonstrates that pseudo\u2010binary solid solution is an effective approach to improving the electrical and thermal properties of chalcopyrite compounds, providing a new pathway for achieving higher thermoelectric performance.\n                  <\/jats:p>","DOI":"10.1002\/smll.75604","type":"journal-article","created":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T07:40:46Z","timestamp":1788766846000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Defect\u2010Induced Local Symmetry Breaking Triggers Lattice Softening for High Thermoelectric Performance in CuInTe\n                    <sub>2<\/sub>\n                    Compounds"],"prefix":"10.1002","author":[{"given":"Yaqiong","family":"Zhong","sequence":"first","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology  Wuhan China"},{"name":"Hubei Longzhong Laboratory 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