Determination of void arrangements in inverse opals by transmission electron microscopy

Christopher F. Blanford; C. Barry Carter; Andreas Stein

doi:10.1088/1742-6596/26/1/063

Determination of void arrangements in inverse opals by transmission electron microscopy

Christopher F. Blanford, C. Barry Carter, Andreas Stein

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

Abstract

Three-dimensionally ordered macroporous (3DOM) materials, also known as inverse opals, have been extensively investigated for use as photonic crystals that operate in the visible and near-IR region of the spectrum. Because the template for 3DOM materials is made by a colloidal self-assembly process, they can easily incorporate defects that degrade or eliminate their desired light-restricting properties. We have developed a method that uses transmission electron microscopy (TEM) to probe the interior of individual sections of 3DOM photonic crystals by bright-field imaging followed by two-dimensional Fourier image analysis. The technique permits the viewing of stacking faults in the crystal. Analysis of samples of 3DOM ceramics has allowed us to confirm that the voids in the structures are arranged on the points of a face-centred cubic lattice. © 2006 IOP Publishing Ltd.

Original language	English
Pages (from-to)	264-267
Number of pages	3
Journal	Journal of Physics: Conference Series
Volume	26
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/26/1/063
Publication status	Published - 1 Jan 2006

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title = "Determination of void arrangements in inverse opals by transmission electron microscopy",

abstract = "Three-dimensionally ordered macroporous (3DOM) materials, also known as inverse opals, have been extensively investigated for use as photonic crystals that operate in the visible and near-IR region of the spectrum. Because the template for 3DOM materials is made by a colloidal self-assembly process, they can easily incorporate defects that degrade or eliminate their desired light-restricting properties. We have developed a method that uses transmission electron microscopy (TEM) to probe the interior of individual sections of 3DOM photonic crystals by bright-field imaging followed by two-dimensional Fourier image analysis. The technique permits the viewing of stacking faults in the crystal. Analysis of samples of 3DOM ceramics has allowed us to confirm that the voids in the structures are arranged on the points of a face-centred cubic lattice. {\textcopyright} 2006 IOP Publishing Ltd.",

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AU - Blanford, Christopher F.

AU - Carter, C. Barry

AU - Stein, Andreas

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N2 - Three-dimensionally ordered macroporous (3DOM) materials, also known as inverse opals, have been extensively investigated for use as photonic crystals that operate in the visible and near-IR region of the spectrum. Because the template for 3DOM materials is made by a colloidal self-assembly process, they can easily incorporate defects that degrade or eliminate their desired light-restricting properties. We have developed a method that uses transmission electron microscopy (TEM) to probe the interior of individual sections of 3DOM photonic crystals by bright-field imaging followed by two-dimensional Fourier image analysis. The technique permits the viewing of stacking faults in the crystal. Analysis of samples of 3DOM ceramics has allowed us to confirm that the voids in the structures are arranged on the points of a face-centred cubic lattice. © 2006 IOP Publishing Ltd.

AB - Three-dimensionally ordered macroporous (3DOM) materials, also known as inverse opals, have been extensively investigated for use as photonic crystals that operate in the visible and near-IR region of the spectrum. Because the template for 3DOM materials is made by a colloidal self-assembly process, they can easily incorporate defects that degrade or eliminate their desired light-restricting properties. We have developed a method that uses transmission electron microscopy (TEM) to probe the interior of individual sections of 3DOM photonic crystals by bright-field imaging followed by two-dimensional Fourier image analysis. The technique permits the viewing of stacking faults in the crystal. Analysis of samples of 3DOM ceramics has allowed us to confirm that the voids in the structures are arranged on the points of a face-centred cubic lattice. © 2006 IOP Publishing Ltd.

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DO - 10.1088/1742-6596/26/1/063

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JO - Journal of Physics: Conference Series

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Determination of void arrangements in inverse opals by transmission electron microscopy

Abstract

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