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de Boor, Johannes und Gupta, S. und Kolb, Hendrik und Dasgupta, Titas und Müller, Eckhard (2015) Thermoelectric transport and microstructure of optimized Mg2Si0.8Sn0.2. Journal of Materials Chemistry C, 3 (40), Seiten 10467-10475. Royal Society of Chemistry. doi: 10.1039/C5TC01535A. ISSN 2050-7526.
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Kurzfassung
Solid solutions of magnesium silicide and magnesium stannide exhibit excellent thermoelectric properties due to favorable electronic band structures and reduced thermal conductivity compared to the binary compounds. We have optimized the composition Mg2Si0.8Sn0.2 by Sb doping and obtained a thermoelectric figure of merit close to unity. The material comprises of several phases and exhibits intrinsic nanostructuring. Nevertheless, the main features of electronic transport can be understood within the framework of a single parabolic band model. Compared to Mg2Si we observe a comparable power factor, a drastically reduced thermal conductivity and an increased effective mass.
| elib-URL des Eintrags: | https://elib.dlr.de/100136/ | ||||||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||
| Titel: | Thermoelectric transport and microstructure of optimized Mg2Si0.8Sn0.2 | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | 9 Juli 2015 | ||||||||||||||||||||||||
| Erschienen in: | Journal of Materials Chemistry C | ||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||
| Open Access: | Ja | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||||||
| Band: | 3 | ||||||||||||||||||||||||
| DOI: | 10.1039/C5TC01535A | ||||||||||||||||||||||||
| Seitenbereich: | Seiten 10467-10475 | ||||||||||||||||||||||||
| Verlag: | Royal Society of Chemistry | ||||||||||||||||||||||||
| ISSN: | 2050-7526 | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | thermoelectric materials, magnesium silicide | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
| HGF - Programm: | Verkehr | ||||||||||||||||||||||||
| HGF - Programmthema: | Bodengebundener Verkehr (alt) | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Verkehr | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | V BF - Bodengebundene Fahrzeuge | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | V - Fahrzeugenergiesystem III (alt) | ||||||||||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Werkstoff-Forschung > Thermoelektrische Materialien und Systeme | ||||||||||||||||||||||||
| Hinterlegt von: | Zabrocki, Dr. Knud | ||||||||||||||||||||||||
| Hinterlegt am: | 07 Jan 2016 08:16 | ||||||||||||||||||||||||
| Letzte Änderung: | 27 Nov 2023 12:45 |
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