{"id":1305,"date":"2022-01-23T10:43:31","date_gmt":"2022-01-23T02:43:31","guid":{"rendered":"http:\/\/ustb.cc\/zh\/?p=1305"},"modified":"2023-09-10T19:50:46","modified_gmt":"2023-09-10T11:50:46","slug":"in4pb5-5sb5s19-a-stable-quaternary-chalcogenide-with-low-thermal-conductivity","status":"publish","type":"post","link":"http:\/\/ustb.cc\/zh\/in4pb5-5sb5s19-a-stable-quaternary-chalcogenide-with-low-thermal-conductivity\/","title":{"rendered":"In4Pb5.5Sb5S19: A Stable Quaternary Chalcogenide with Low Thermal Conductivity."},"content":{"rendered":"\n

Inorg. Chem.<\/mark><\/em><\/strong>, 2021, 60, 1, 325-333.<\/strong> https:\/\/doi.org\/10.1021\/acs.inorgchem.0c02966<\/a><\/p>\n\n\n

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Transition-metal-based chalcogenides are a series of intriguing semiconductors with applications spanning various fields because of their rich structure and numerous functionalities. This paper reports the crystal structure and basic physical properties of a new quaternary chalcogenide In4<\/sub>Pb5.5<\/sub>Sb5<\/sub>S19<\/sub>. The crystal structure of In4<\/sub>Pb5.5<\/sub>Sb5<\/sub>S19<\/sub> was determined by both powder and single-crystal X-ray diffraction techniques. In4<\/sub>Pb5.5<\/sub>Sb5<\/sub>S19<\/sub> crystallizes in the monoclinic system with I<\/em>2\/m<\/em> space group, and the structure parameters are a<\/em> = 26.483 \u00c5, b<\/em> = 3.899 \u00c5, c<\/em> = 32.696 \u00c5, and \u03b2 = 111.86\u00b0. The polyhedral double chains of Sb3+<\/sup> and Sb\/Pb2+<\/sup> as the main cations are parallel to each other and form a Jamesonite-like mineral structure through the short chain links of the distorted In, Pb, and Sb polyhedron. In4<\/sub>Pb5.5<\/sub>Sb5<\/sub>S19<\/sub> exhibits a moderate experimental band gap of 1.42 eV, indicating its potential for application in solar cells and photocatalysis. In addition, In4<\/sub>Pb5.5<\/sub>Sb5<\/sub>S19<\/sub> exhibits good ambient stability, and differential scanning calorimetry tests demonstrate that it is stable up to 892 K in a nitrogen atmosphere. Moreover, In4<\/sub>Pb5.5<\/sub>Sb5<\/sub>S19<\/sub> exhibits extremely low thermal conductivity (0.438\u20130.478 W m\u20131<\/sup> K\u20131<\/sup> ranging from 300 to 700 K) compared with binary counterparts such as PbS and In2<\/sub>S3<\/sub>. Future chemical manipulation via elemental doping or defect engineering may make the title compound a potential thermoelectric or thermal insulating material.<\/p>\n","protected":false},"excerpt":{"rendered":"

Inorg. Chem., 2021, 60, 1, 325-333. https:\/\/doi.org\/10. […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[],"class_list":["post-1305","post","type-post","status-publish","format-standard","hentry","category-lab_papers_2021"],"_links":{"self":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/1305","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/comments?post=1305"}],"version-history":[{"count":3,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/1305\/revisions"}],"predecessor-version":[{"id":2475,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/1305\/revisions\/2475"}],"wp:attachment":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/media?parent=1305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/categories?post=1305"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/tags?post=1305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}