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

Department of Physics

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

25 Scopus citations

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(II) 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
DOIs	https://doi.org/10.1039/c3cc41506f
State	Published - 14 May 2013

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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(II) to Fe(III) as being responsible for the characteristic blue appearance.",

author = "Bristow, {Jessica K.} and Parker, {Stephen C.} and {A. Catlow}, {C. Richard} and Woodley, {Scott M.} and Aron Walsh",

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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 - 2013/5/14

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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(II) 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(II) to Fe(III) as being responsible for the characteristic blue appearance.

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SP - 5259

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JO - Chemical Communications

JF - Chemical Communications

IS - 46

ER -

Microscopic origin of the optical processes in blue sapphire

Abstract

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