A luminescence study of porous diatoms

K. S A Butcher; J. M. Ferris; M. R. Phillips; M. Wintrebert-Fouquet; J. W. Jong Wah; Nemanja Jovanovic; W. Vyverman; V. A. Chepurnov

doi:10.1016/j.msec.2005.06.049

A luminescence study of porous diatoms

K. S A Butcher^*, J. M. Ferris, M. R. Phillips, M. Wintrebert-Fouquet, J. W. Jong Wah, Nemanja Jovanovic, W. Vyverman, V. A. Chepurnov

^*Corresponding author for this work

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Abstract

The cathodoluminescent and photoluminescent properties of the nanoporous silica frustules of various diatom strains and of natural diatom samples are presented. The spectra are observed to be similar to that of pure silica glass and the phenology is therefore believed to also be somewhat similar. A strong UV-blue luminescence peak is commonly observed as well as a yellow peak at 2.15 eV. For the more heavily silicified field-collected freshwater benthic samples, a strong red peak at 1.95 eV is also observed. The 2.15 eV peak is also more strongly evident for the field-collected samples. The UV-blue peak is related to common silica defect structure but cathodoluminescent microanalysis shows that this emission is highly localized in the diatom samples.

Original language	English
Pages (from-to)	658-663
Number of pages	6
Journal	Materials Science and Engineering C
Volume	25
Issue number	5-8
DOIs	https://doi.org/10.1016/j.msec.2005.06.049
Publication status	Published - Dec 2005

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title = "A luminescence study of porous diatoms",

abstract = "The cathodoluminescent and photoluminescent properties of the nanoporous silica frustules of various diatom strains and of natural diatom samples are presented. The spectra are observed to be similar to that of pure silica glass and the phenology is therefore believed to also be somewhat similar. A strong UV-blue luminescence peak is commonly observed as well as a yellow peak at 2.15 eV. For the more heavily silicified field-collected freshwater benthic samples, a strong red peak at 1.95 eV is also observed. The 2.15 eV peak is also more strongly evident for the field-collected samples. The UV-blue peak is related to common silica defect structure but cathodoluminescent microanalysis shows that this emission is highly localized in the diatom samples.",

author = "Butcher, {K. S A} and Ferris, {J. M.} and Phillips, {M. R.} and M. Wintrebert-Fouquet and {Jong Wah}, {J. W.} and Nemanja Jovanovic and W. Vyverman and Chepurnov, {V. A.}",

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T1 - A luminescence study of porous diatoms

AU - Butcher, K. S A

AU - Ferris, J. M.

AU - Phillips, M. R.

AU - Wintrebert-Fouquet, M.

AU - Jong Wah, J. W.

AU - Jovanovic, Nemanja

AU - Vyverman, W.

AU - Chepurnov, V. A.

PY - 2005/12

Y1 - 2005/12

N2 - The cathodoluminescent and photoluminescent properties of the nanoporous silica frustules of various diatom strains and of natural diatom samples are presented. The spectra are observed to be similar to that of pure silica glass and the phenology is therefore believed to also be somewhat similar. A strong UV-blue luminescence peak is commonly observed as well as a yellow peak at 2.15 eV. For the more heavily silicified field-collected freshwater benthic samples, a strong red peak at 1.95 eV is also observed. The 2.15 eV peak is also more strongly evident for the field-collected samples. The UV-blue peak is related to common silica defect structure but cathodoluminescent microanalysis shows that this emission is highly localized in the diatom samples.

AB - The cathodoluminescent and photoluminescent properties of the nanoporous silica frustules of various diatom strains and of natural diatom samples are presented. The spectra are observed to be similar to that of pure silica glass and the phenology is therefore believed to also be somewhat similar. A strong UV-blue luminescence peak is commonly observed as well as a yellow peak at 2.15 eV. For the more heavily silicified field-collected freshwater benthic samples, a strong red peak at 1.95 eV is also observed. The 2.15 eV peak is also more strongly evident for the field-collected samples. The UV-blue peak is related to common silica defect structure but cathodoluminescent microanalysis shows that this emission is highly localized in the diatom samples.

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DO - 10.1016/j.msec.2005.06.049

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JO - Materials Science and Engineering C

JF - Materials Science and Engineering C

SN - 0928-4931

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ER -

A luminescence study of porous diatoms

Abstract

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