Nanostructuring in β-Zn 4Sb 3 with variable starting Zn compositions

Protima Rauwel*, Ole Martin Laøvvik, Erwan Rauwel, Eric S. Toberer, G. Jeffrey Snyder, Johan Taftaø

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Thermoelectric Zn 4-δSb 3 samples with varying Zn concentrations were synthesized. The morphology, along with planar and extended defects was studied using transmission electron microscopy (TEM). For all the Zn concentrations, nanostructuring was observed. Depending on the Zn concentration, two different types of nanostructures were observed: nanovoids and nanograins. Three samples with Zn:Sb ratios of 1.28, 1.30, and 1.36 were studied. The presence of the secondary phases was discussed in terms of the phase diagram. Density functional theory (DFT) calculations further elucidated the formation of secondary phases as a function of different Zn:Sb ratio. ZnSb nanoparticles in β-Zn 4Sb 3.

Original languageEnglish (US)
Pages (from-to)1652-1657
Number of pages6
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume208
Issue number7
DOIs
StatePublished - Jul 2011

Keywords

  • Zn Sb
  • density functional theory
  • nanostructures
  • thermoelectric materials
  • transmission electron microscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Nanostructuring in β-Zn <sub>4</sub>Sb <sub>3</sub> with variable starting Zn compositions'. Together they form a unique fingerprint.

Cite this