Single crystallization of Ba 8Al xSi 46-x clathrate by using the flux Czochralski method

Yusuke Nakakohara, Naoki Mugita, Yuya Nagatomo, Makoto Saisho, Teruaki Motooka, Ryo Teranishi, Shinji Munetoh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We have synthesized single crystalline Ba 8Al xSi x-46 clathrates by using the flux Czochralski (CZ) method with Al-rich melt. The specific electric resistivity, the Seebeck coefficient and the power factor of single crystalline Ba 8Al 14Si 32 were 0.73 mΩcm, 70.0μV/K and 6.8×10 -4V 2/K 2Ωm, respectively. These values are higher than that of single crystalline Ba 8Al 12Si 34clathrate because of the reduced carrier concentration. It is indicated that Al contents and the carrier concentration of single crystalline Ba 8Al xSi 46-x can be controlled by using the flux Czochralski method.

Original languageEnglish
Title of host publicationEnergy Harvesting - Recent Advances in Materials, Devices and Applications
Pages131-135
Number of pages5
DOIs
Publication statusPublished - Jan 1 2012
Event2011 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 25 2011Apr 29 2011

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1325
ISSN (Print)0272-9172

Other

Other2011 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period4/25/114/29/11

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Nakakohara, Y., Mugita, N., Nagatomo, Y., Saisho, M., Motooka, T., Teranishi, R., & Munetoh, S. (2012). Single crystallization of Ba 8Al xSi 46-x clathrate by using the flux Czochralski method. In Energy Harvesting - Recent Advances in Materials, Devices and Applications (pp. 131-135). (Materials Research Society Symposium Proceedings; Vol. 1325). https://doi.org/10.1557/opl.2011.1060