Heteroanionic Materials by Design: Progress Toward Targeted Properties

Jaye K. Harada, Nenian Charles, Kenneth R. Poeppelmeier, James M. Rondinelli

Research output: Contribution to journalReview article

15 Citations (Scopus)

Abstract

The burgeoning field of anion engineering in oxide-based compounds aims to tune physical properties by incorporating additional anions of different size, electronegativity, and charge. For example, oxychalcogenides, oxynitrides, oxypnictides, and oxyhalides may display new or enhanced responses not readily predicted from or even absent in the simpler homoanionic (oxide) compounds because of their proximity to the ionocovalent-bonding boundary provided by contrasting polarizabilities of the anions. In addition, multiple anions allow heteroanionic materials to span a more complex atomic structure design palette and interaction space than the homoanionic oxide-only analogs. Here, established atomic and electronic principles for the rational design of properties in heteroanionic materials are contextualized. Also described are synergistic quantum mechanical methods and laboratory experiments guided by these principles to achieve superior properties. Lastly, open challenges in both the synthesis and the understanding and prediction of the electronic, optical, and magnetic properties afforded by anion-engineering principles in heteroanionic materials are reviewed.

Original languageEnglish
Article number1805295
JournalAdvanced Materials
Volume31
Issue number19
DOIs
Publication statusPublished - May 10 2019

Keywords

  • electronic structure
  • heteroanionic materials
  • materials design
  • oxyfluorides
  • transition metal compounds

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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