Self-assembled colloidal photonic crystals

Frieda Kopnov; Vlad Lirtsman; Dan Davidov

doi:10.1016/S0379-6779(02)00839-1

Self-assembled colloidal photonic crystals

Frieda Kopnov, Vlad Lirtsman, Dan Davidov

Racah Institute of Physics

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

24 Scopus citations

Abstract

We fabricated colloidal photonic crystals for visible and near-infra-red range using different colloidal particles (polystyrene (PS) beads, silica beads and core/shell PS/PPV beads) with size ranging from 240 to 710 nm. SEM images indicate ordered structures, with few defects. All the ordered structures exhibit a clear "stop band" as well as some evidence for higher order bands in light transmission experiments. The position of the stop-band scales nicely with particles size. We studied also the photoluminescence (PL) of poly(phenylenevinylene) (PPV) included into the photonic crystals.

Original language	English
Pages (from-to)	993-995
Number of pages	3
Journal	Synthetic Metals
Volume	137
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(02)00839-1
State	Published - 4 Apr 2003

Keywords

Bragg diffraction
Nanoparticles
Photonic crystal
Stop band

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10.1016/S0379-6779(02)00839-1

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title = "Self-assembled colloidal photonic crystals",

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author = "Frieda Kopnov and Vlad Lirtsman and Dan Davidov",

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AU - Kopnov, Frieda

AU - Lirtsman, Vlad

AU - Davidov, Dan

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N2 - We fabricated colloidal photonic crystals for visible and near-infra-red range using different colloidal particles (polystyrene (PS) beads, silica beads and core/shell PS/PPV beads) with size ranging from 240 to 710 nm. SEM images indicate ordered structures, with few defects. All the ordered structures exhibit a clear "stop band" as well as some evidence for higher order bands in light transmission experiments. The position of the stop-band scales nicely with particles size. We studied also the photoluminescence (PL) of poly(phenylenevinylene) (PPV) included into the photonic crystals.

AB - We fabricated colloidal photonic crystals for visible and near-infra-red range using different colloidal particles (polystyrene (PS) beads, silica beads and core/shell PS/PPV beads) with size ranging from 240 to 710 nm. SEM images indicate ordered structures, with few defects. All the ordered structures exhibit a clear "stop band" as well as some evidence for higher order bands in light transmission experiments. The position of the stop-band scales nicely with particles size. We studied also the photoluminescence (PL) of poly(phenylenevinylene) (PPV) included into the photonic crystals.

KW - Bragg diffraction

KW - Nanoparticles

KW - Photonic crystal

KW - Stop band

UR - https://www.scopus.com/pages/publications/0037419360

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JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

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Self-assembled colloidal photonic crystals

Abstract

Keywords

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