Corundum-based transparent infrared absorbers

Udo Schwingenschlögl, Cosima B. Schuster, Raymond Frésard

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Hypothetical corundum-based compounds are studied by electronic structure calculations. One quarter of the Al atoms in Al2O3 is replaced by a 3d transition metal from the M = Ti, ..., Zn (d1, ..., d9) series. Structure optimisations are performed for all the M-Al2O3 compounds and the electronic states are evaluated. Due to the M substitutes, narrow partially filled bands are formed at the Fermi energy. Beyond, for M = Ni and M = Cu the optical properties of Al2O3 in the visible range are conserved, while for M = Ti, ..., Co the systems form high accuracy optical filters. Since the compounds absorb the infrared radiation, the M = Ni and M = Cu systems are good candidates for heat-protective coatings. © 2009 Elsevier B.V. All rights reserved.
Original languageEnglish (US)
Pages (from-to)62-67
Number of pages6
JournalChemical Physics Letters
Volume481
Issue number1-3
DOIs
StatePublished - Oct 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fingerprint

Dive into the research topics of 'Corundum-based transparent infrared absorbers'. Together they form a unique fingerprint.

Cite this