Theoretical prediction and experimental realization of new stable inorganic materials using the inverse design approach

Andriy Zakutayev, Xiuwen Zhang, Arpun Nagaraja, Liping Yu, Stephan Lany, Thomas O Mason, David S. Ginley, Alex Zunger

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

Discovery of new materials is important for all fields of chemistry. Yet, existing compilations of all known ternary inorganic solids still miss many possible combinations. Here, we present an example of accelerated discovery of the missing materials using the inverse design approach, which couples predictive first-principles theoretical calculations with combinatorial and traditional experimental synthesis and characterization. The compounds in focus belong to the equiatomic (1:1:1) ABX family of ternary materials with 18 valence electrons per formula unit. Of the 45 possible V-IX-IV compounds, 29 are missing. Theoretical screening of their thermodynamic stability revealed eight new stable 1:1:1 compounds, including TaCoSn. Experimental synthesis of TaCoSn, the first ternary in the Ta-Co-Sn system, confirmed its predicted zincblende-derived crystal structure. These results demonstrate how discovery of new materials can be accelerated by the combination of high-throughput theoretical and experimental methods. Despite being made of three metallic elements, TaCoSn is predicted and explained to be a semiconductor. The band gap of this material is difficult to measure experimentally, probably due to a high concentration of interstitial cobalt defects.

Original languageEnglish
Pages (from-to)10048-10054
Number of pages7
JournalJournal of the American Chemical Society
Volume135
Issue number27
DOIs
Publication statusPublished - Jul 10 2013

Fingerprint

Semiconductors
Cobalt
Thermodynamics
Electrons
Screening
Energy gap
Thermodynamic stability
Crystal structure
Throughput
Semiconductor materials
Defects

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Theoretical prediction and experimental realization of new stable inorganic materials using the inverse design approach. / Zakutayev, Andriy; Zhang, Xiuwen; Nagaraja, Arpun; Yu, Liping; Lany, Stephan; Mason, Thomas O; Ginley, David S.; Zunger, Alex.

In: Journal of the American Chemical Society, Vol. 135, No. 27, 10.07.2013, p. 10048-10054.

Research output: Contribution to journalArticle

Zakutayev, Andriy ; Zhang, Xiuwen ; Nagaraja, Arpun ; Yu, Liping ; Lany, Stephan ; Mason, Thomas O ; Ginley, David S. ; Zunger, Alex. / Theoretical prediction and experimental realization of new stable inorganic materials using the inverse design approach. In: Journal of the American Chemical Society. 2013 ; Vol. 135, No. 27. pp. 10048-10054.
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