Investigation on the preparation and thermoelectric properties of layered SrAl2Ge2
DOI:
Author:
Affiliation:

Clc Number:

O482.6

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
    Abstract:

    II, III and IV groups were widely investigated to synthesize guest-host thermoelectric compounds in order to obtain high optimal ZT value materials. While a novel layered structure was less reported for Sr-Al-Ge system. In this study, SrAl2Ge2 single crystal was grown by aluminum flux at 1150℃ and characterized by powder X-ray methods. It is isotropic and crystallize in the CaAl2Si2-type structure through the Rietveld refinement method (space group P3-m1) with the lattice constants a=b=4.2339(1) Å, c=7.4809(0) Å. Temperature-depended resistivity on single crystals along the c-axis shows p-type semiconducting behavior. Heat capacity (Cp) was measured in 2-300 K and low temperature Cp was consistent with data calculated by using Debye model. This work opens up a novel avenue for seeking and designing environment-friendly and high-performance thermoelectric materials.

    Reference
    Related
    Cited by
Get Citation

Cite this article as: SHI Xiao-Man, CHEN Long-Qing, WangZhengshang, HE Huan, SUN Yi-Xiang, ZENG Zhu, TANG Jun. Investigation on the preparation and thermoelectric properties of layered SrAl2Ge2 [J]. J Sichuan Univ: Nat Sci Ed, 2019, 56: 939.

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:March 25,2018
  • Revised:April 23,2018
  • Adopted:April 28,2018
  • Online: September 27,2019
  • Published: