# Electronic and Thermal Transport Properties of Nanostructured Thermoelectric Materials Sintered from Chemically Synthesized Tin Sulfide Nanoparticles and Effects of Ag and Se Doping https://mdr.nims.go.jp/datasets/2388f78f-2039-4e50-b1c2-b5eb06c8b4ea ## File - [Electronic and Thermal Transport Properties of Nanostructured Thermoelectric Materials Sintered from Chemically Synthesized Tin Sulfide Nanoparticles and Effects of Ag and Se Doping.pdf](https://mdr.nims.go.jp/filesets/db060960-a472-4253-95eb-12a2c0376f09/download) ([Detail](https://mdr.nims.go.jp/filesets/db060960-a472-4253-95eb-12a2c0376f09.md)) ## Id 2388f78f-2039-4e50-b1c2-b5eb06c8b4ea ## Local identifier ## Visibility open_to_public ## State published ## Created at 2024-08-21T08:34:57.490362Z ## Updated at 2025-05-15T23:30:14.476722Z ## Published at 2025-05-15T23:20:26.774632Z ## Doi https://doi.org/10.48505/nims.4688 ## First published url https://doi.org/10.1021/acsaem.4c00487 ## Date published 2024-05-27 ## Recorded date published 2024-5-27 ## Resource type journal_article ## Manuscript type accepted_manuscript ## Collection ## Title - title: Electronic and Thermal Transport Properties of Nanostructured Thermoelectric Materials Sintered from Chemically Synthesized Tin Sulfide Nanoparticles and Effects of Ag and Se Doping title_type: original lang: en ## Description - description: 'SnS and SnSe are layered materials with similar crystal structures, of which SnSe has attracted attention as a high-performance thermoelectric material thanks to its high phonon anharmonicity. However, sulfur is less toxic and more abundant than selenium, making SnS an environmentally friendly and sustainable thermoelectric material, although its thermoelectric conversion efficiency is very low (dimensionless figure of merit, ZT, ~ 0.01). Attempts to improve the ZT of SnS are ongoing, with doping of impurity elements such as Na, Ag and Se being the main methods used. However, the effects have been inconsistent and controversial. In this study, SnS nanoparticles (NPs), Ag-doped SnS NPs and Ag-doped SnS1−xSex NPs with S partially replaced by Se were chemically synthesized. These NPs were then sintered by hot-pressing and the correlation between the electronic and thermal transport properties and structure of the sintered pellets was investigated in detail. As a result, it was found that when Ag-doped SnS NPs were sintered, two types of Ag were present in the sintered pellets: one in the form of segregated Ag-rich nanoprecipitates, and the other in the form of interlayer intercalated Ag ions. On the other hand, when Ag-doped SnS1−xSex NPs were sintered, Se was found to form a homogeneous solid solution. The effects of these three impurity-derived structures (Ag-rich nanoprecipitates, intercalated Ag+ and Se in solid solution in SnS) on the electronic and thermal conduction properties were investigated. The ZT values were improved by Ag-doping and Se-doping, and the ZT values for SnS doped with 1.5 at% Ag (SnS:Ag) and SnS0.9Se0.1:Ag, in which SnS:Ag was further doped with Se (10 at% with respect to S), were 0.09 at 666 K and 0.14 at 667 K, respectively.' description_type: abstract lang: und ## Creator - name: Keiji Kobayashi role: author - name: Mari Takahashi role: author - name: Simon Moore role: author - name: Masanobu Miyata role: author - name: Philipp Sauerschnig role: author orcid: https://orcid.org/0000-0003-4666-5262 organization: National Institute for Materials Science - name: Jun Uzuhashi role: author orcid: https://orcid.org/0000-0003-2023-8158 organization: National Institute for Materials Science ror: https://ror.org/026v1ze26 - name: Michihiro Ohta role: author - name: Tadakatsu Ohkubo role: author orcid: https://orcid.org/0000-0003-3548-1951 organization: National Institute for Materials Science ror: https://ror.org/026v1ze26 - name: Shinya Maenosono role: author ## Contact agent ## Publisher organization: American Chemical Society (ACS) ## Managing organization ## Keyword - subject: thermoelectric materials schema: not_defined - subject: electron microscopy schema: not_defined ## Rights - description: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Energy Materials, copyright © 2024 The Authors. Published by American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsaem.4c00487 identifier: http://rightsstatements.org/vocab/InC/1.0/ ## Other identifier(s) ## Data origin - data_origin_type: other ## Embargo start_date: 2024-05-16 end_date: 2025-05-16 ## Journal - title: ACS Applied Energy Materials issn: '25740962' volume: '7' issue: '10' start_page: 4484 end_page: 4493 ## Conference ## Related item ## Funding - funder_name: Thermal and Electric Energy Technology Foundation - identifier: 19H02440 funder_name: Japan Society for the Promotion of Science ## Instrument ## Instrument operator ## Instrument managing organization ## Measurement method ## Specimen ## Chemical composition ## Structure for specimen ## Structural feature for specimen ## Specific property for specimen ## Process for specimen treatment ## Computational method ## Energy level/transition state ## Software ## Custom property ## Fileset - id: db060960-a472-4253-95eb-12a2c0376f09 filename: Electronic and Thermal Transport Properties of Nanostructured Thermoelectric Materials Sintered from Chemically Synthesized Tin Sulfide Nanoparticles and Effects of Ag and Se Doping.pdf content_type: application/pdf size: 970648 md5: 24bb3041d6fdc4a8699dc5a451694201 ## Thumbnail fileset_id: db060960-a472-4253-95eb-12a2c0376f09 filename: Electronic and Thermal Transport Properties of Nanostructured Thermoelectric Materials Sintered from Chemically Synthesized Tin Sulfide Nanoparticles and Effects of Ag and Se Doping.pdf