Microscopic origin of the optical processes in blue sapphire

Jessica K. Bristow; Stephen C. Parker; C. Richard A. Catlow; Scott M. Woodley; Aron Walsh

doi:10.1039/c3cc41506f

Microscopic origin of the optical processes in blue sapphire

Jessica K. Bristow
, Stephen C. Parker
, C. Richard A. Catlow
, Scott M. Woodley
, Aron Walsh

University College London

Research output: Contribution to journal › Article › peer-review

26 Citations (SciVal)

201 Downloads (Pure)

Abstract

Al2O3 changes from transparent to a range of intense colours depending on the chemical impurities present. In blue sapphire, Fe and Ti are incorporated; however, the chemical process that gives rise to the colour has long been debated. Atomistic modelling identifies charge transfer from Ti(III) to Fe(III) as being responsible for the characteristic blue appearance.

Original language	English
Pages (from-to)	5259-5261
Number of pages	3
Journal	Chemical Communications
Volume	49
Issue number	46
Early online date	1 May 2013
DOIs	https://doi.org/10.1039/c3cc41506f
Publication status	Published - 21 Jun 2013

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Cite this

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title = "Microscopic origin of the optical processes in blue sapphire",

abstract = "Al2O3 changes from transparent to a range of intense colours depending on the chemical impurities present. In blue sapphire, Fe and Ti are incorporated; however, the chemical process that gives rise to the colour has long been debated. Atomistic modelling identifies charge transfer from Ti(III) to Fe(III) as being responsible for the characteristic blue appearance.",

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AU - Bristow, Jessica K.

AU - Parker, Stephen C.

AU - A. Catlow, C. Richard

AU - Woodley, Scott M.

AU - Walsh, Aron

PY - 2013/6/21

Y1 - 2013/6/21

N2 - Al2O3 changes from transparent to a range of intense colours depending on the chemical impurities present. In blue sapphire, Fe and Ti are incorporated; however, the chemical process that gives rise to the colour has long been debated. Atomistic modelling identifies charge transfer from Ti(III) to Fe(III) as being responsible for the characteristic blue appearance.

AB - Al2O3 changes from transparent to a range of intense colours depending on the chemical impurities present. In blue sapphire, Fe and Ti are incorporated; however, the chemical process that gives rise to the colour has long been debated. Atomistic modelling identifies charge transfer from Ti(III) to Fe(III) as being responsible for the characteristic blue appearance.

UR - https://www.scopus.com/pages/publications/84877768524

UR - http://dx.doi.org/10.1039/c3cc41506f

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DO - 10.1039/c3cc41506f

M3 - Article

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EP - 5261

JO - Chemical Communications

JF - Chemical Communications

IS - 46

ER -

Microscopic origin of the optical processes in blue sapphire

Abstract

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