Dimer-based three-dimensional photonic crystals

Ian D. Hosein; Stephanie H. Lee; Chekesha M. Liddell

doi:10.1002/adfm.201000134

Dimer-based three-dimensional photonic crystals

Ian D. Hosein, Stephanie H. Lee, Chekesha M. Liddell

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

57 Scopus citations

Abstract

The self-assembly of polystyrene dimer- and spherocylinder-shaped colloids is achieved via controlled drying on glass and silicon substrates. 3D monoclinic colloidal crystal structures are determined from scanning electron microscopy images of sections prepared using focused ion-beam (FIB) milling. Full photonic bandgaps between the eighth and ninth bands are found for a systematic range of colloidal dimer shapes explored with respect to the degree of constituent lobe fusion and radius ratio. The pseudogap between bands 2 and 3 for spherocylinder-based monoclinic crystals is also probed using normal incidence reflection spectroscopy.

Original language	English (US)
Pages (from-to)	3085-3091
Number of pages	7
Journal	Advanced Functional Materials
Volume	20
Issue number	18
DOIs	https://doi.org/10.1002/adfm.201000134
State	Published - Sep 23 2010
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Chemistry
Condensed Matter Physics
General Materials Science
Electrochemistry
Biomaterials

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10.1002/adfm.201000134

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AU - Lee, Stephanie H.

AU - Liddell, Chekesha M.

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N2 - The self-assembly of polystyrene dimer- and spherocylinder-shaped colloids is achieved via controlled drying on glass and silicon substrates. 3D monoclinic colloidal crystal structures are determined from scanning electron microscopy images of sections prepared using focused ion-beam (FIB) milling. Full photonic bandgaps between the eighth and ninth bands are found for a systematic range of colloidal dimer shapes explored with respect to the degree of constituent lobe fusion and radius ratio. The pseudogap between bands 2 and 3 for spherocylinder-based monoclinic crystals is also probed using normal incidence reflection spectroscopy.

AB - The self-assembly of polystyrene dimer- and spherocylinder-shaped colloids is achieved via controlled drying on glass and silicon substrates. 3D monoclinic colloidal crystal structures are determined from scanning electron microscopy images of sections prepared using focused ion-beam (FIB) milling. Full photonic bandgaps between the eighth and ninth bands are found for a systematic range of colloidal dimer shapes explored with respect to the degree of constituent lobe fusion and radius ratio. The pseudogap between bands 2 and 3 for spherocylinder-based monoclinic crystals is also probed using normal incidence reflection spectroscopy.

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Dimer-based three-dimensional photonic crystals

Abstract

ASJC Scopus subject areas

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