Thermoelectric Properties of a Single Crystalline Ag2Te Nanowire
Silver chalcogenides have received much attention in potential thermoelectric materials research because of high carrier mobility and low effective mass. Among them, in Ag2Te, it was reported that the phase transition from monoclinic to cubic phase occurs at relatively low temperatures, so that exte...
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| Veröffentlicht in: | Journal of nanomaterials 2017-01, Vol.2017 (2017), p.1-5 |
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| creator | Jung, Myung-Hwa Song, Jae Yong Shin, Ho Sun Lee, Sunghun |
| description | Silver chalcogenides have received much attention in potential thermoelectric materials research because of high carrier mobility and low effective mass. Among them, in Ag2Te, it was reported that the phase transition from monoclinic to cubic phase occurs at relatively low temperatures, so that extensive research for effective application using this material has been aroused. In this work, we investigated how 1-dimensional nanostructure affects the thermoelectric properties through as-synthesized single crystalline Ag2Te nanowires. Adopting well-defined thermoelectric MEMS device structure and transferring an individual Ag2Te nanowire, we measure electrical resistance and Seebeck coefficient as a function of temperature. When the phase changes from monoclinic to cubic, the resistance increases, while absolute Seebeck coefficient value decreases. These results are compared with previous reports for Ag2Te bulk and film, suggesting the increased density of states of the carriers due to nanowire structure. |
| doi_str_mv | 10.1155/2017/4308968 |
| format | Article |
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Among them, in Ag2Te, it was reported that the phase transition from monoclinic to cubic phase occurs at relatively low temperatures, so that extensive research for effective application using this material has been aroused. In this work, we investigated how 1-dimensional nanostructure affects the thermoelectric properties through as-synthesized single crystalline Ag2Te nanowires. Adopting well-defined thermoelectric MEMS device structure and transferring an individual Ag2Te nanowire, we measure electrical resistance and Seebeck coefficient as a function of temperature. When the phase changes from monoclinic to cubic, the resistance increases, while absolute Seebeck coefficient value decreases. These results are compared with previous reports for Ag2Te bulk and film, suggesting the increased density of states of the carriers due to nanowire structure.</description><identifier>ISSN: 1687-4110</identifier><identifier>EISSN: 1687-4129</identifier><identifier>DOI: 10.1155/2017/4308968</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Publishing Corporation</publisher><subject>Electrodes ; Energy industry ; Fourier transforms ; Microelectromechanical systems ; Nanomaterials ; Nanowires ; Quality ; Semiconductors ; Silver</subject><ispartof>Journal of nanomaterials, 2017-01, Vol.2017 (2017), p.1-5</ispartof><rights>Copyright © 2017 Sunghun Lee et al.</rights><rights>Copyright © 2017 Sunghun Lee et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0003-3122-8078</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><contributor>Brosseau, Christian</contributor><creatorcontrib>Jung, Myung-Hwa</creatorcontrib><creatorcontrib>Song, Jae Yong</creatorcontrib><creatorcontrib>Shin, Ho Sun</creatorcontrib><creatorcontrib>Lee, Sunghun</creatorcontrib><title>Thermoelectric Properties of a Single Crystalline Ag2Te Nanowire</title><title>Journal of nanomaterials</title><description>Silver chalcogenides have received much attention in potential thermoelectric materials research because of high carrier mobility and low effective mass. 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Among them, in Ag2Te, it was reported that the phase transition from monoclinic to cubic phase occurs at relatively low temperatures, so that extensive research for effective application using this material has been aroused. In this work, we investigated how 1-dimensional nanostructure affects the thermoelectric properties through as-synthesized single crystalline Ag2Te nanowires. Adopting well-defined thermoelectric MEMS device structure and transferring an individual Ag2Te nanowire, we measure electrical resistance and Seebeck coefficient as a function of temperature. When the phase changes from monoclinic to cubic, the resistance increases, while absolute Seebeck coefficient value decreases. 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| subjects | Electrodes Energy industry Fourier transforms Microelectromechanical systems Nanomaterials Nanowires Quality Semiconductors Silver |
| title | Thermoelectric Properties of a Single Crystalline Ag2Te Nanowire |
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