Self-assembled colloidal photonic crystals: Light channels in cracks

O. Popov; V. Lirtsman; F. Kopnov; D. Davidov; T. Saraidarov; R. Reisfeld

doi:10.1016/S0379-6779(03)00333-3

Self-assembled colloidal photonic crystals: Light channels in cracks

O. Popov
, V. Lirtsman
, F. Kopnov
, D. Davidov^*
, T. Saraidarov
, R. Reisfeld

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

10 Scopus citations

Abstract

We fabricated large-area films of colloidal photonic crystals (PC) from polystyrene (PS) beads and Rhodamine B (RB) dyes. The films contain ordered PC domains separated by cracks. The size of the domains and cracks can be controlled by the drying process. We found a pronounced stop-band for all ordered structures and estimated the Bragg attenuation length, L_B, to be of the order of ∼2μm. We demonstrate that the photoluminescence (PL) emission spectra depend on the PC domain size and on the concentration of cracks and other defects. For a film with small density of cracks, we observed light channeling through cracks probably due to light inhibition.

Original language	English
Pages (from-to)	643-647
Number of pages	5
Journal	Synthetic Metals
Volume	139
Issue number	3
DOIs	https://doi.org/10.1016/S0379-6779(03)00333-3
State	Published - 9 Oct 2003
Event	Proceedings of the Fifth International Topical Conference - Venice, Italy Duration: 9 Feb 2003 → 14 Feb 2003

Keywords

Bragg diffraction
Light channeling
Nano-particles
Photonic crystal
Stop-band

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10.1016/S0379-6779(03)00333-3

Cite this

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title = "Self-assembled colloidal photonic crystals: Light channels in cracks",

abstract = "We fabricated large-area films of colloidal photonic crystals (PC) from polystyrene (PS) beads and Rhodamine B (RB) dyes. The films contain ordered PC domains separated by cracks. The size of the domains and cracks can be controlled by the drying process. We found a pronounced stop-band for all ordered structures and estimated the Bragg attenuation length, LB, to be of the order of ∼2μm. We demonstrate that the photoluminescence (PL) emission spectra depend on the PC domain size and on the concentration of cracks and other defects. For a film with small density of cracks, we observed light channeling through cracks probably due to light inhibition.",

keywords = "Bragg diffraction, Light channeling, Nano-particles, Photonic crystal, Stop-band",

author = "O. Popov and V. Lirtsman and F. Kopnov and D. Davidov and T. Saraidarov and R. Reisfeld",

year = "2003",

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language = "אנגלית",

volume = "139",

pages = "643--647",

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note = "Proceedings of the Fifth International Topical Conference ; Conference date: 09-02-2003 Through 14-02-2003",

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TY - JOUR

T1 - Self-assembled colloidal photonic crystals

T2 - Proceedings of the Fifth International Topical Conference

AU - Popov, O.

AU - Lirtsman, V.

AU - Kopnov, F.

AU - Davidov, D.

AU - Saraidarov, T.

AU - Reisfeld, R.

PY - 2003/10/9

Y1 - 2003/10/9

N2 - We fabricated large-area films of colloidal photonic crystals (PC) from polystyrene (PS) beads and Rhodamine B (RB) dyes. The films contain ordered PC domains separated by cracks. The size of the domains and cracks can be controlled by the drying process. We found a pronounced stop-band for all ordered structures and estimated the Bragg attenuation length, LB, to be of the order of ∼2μm. We demonstrate that the photoluminescence (PL) emission spectra depend on the PC domain size and on the concentration of cracks and other defects. For a film with small density of cracks, we observed light channeling through cracks probably due to light inhibition.

AB - We fabricated large-area films of colloidal photonic crystals (PC) from polystyrene (PS) beads and Rhodamine B (RB) dyes. The films contain ordered PC domains separated by cracks. The size of the domains and cracks can be controlled by the drying process. We found a pronounced stop-band for all ordered structures and estimated the Bragg attenuation length, LB, to be of the order of ∼2μm. We demonstrate that the photoluminescence (PL) emission spectra depend on the PC domain size and on the concentration of cracks and other defects. For a film with small density of cracks, we observed light channeling through cracks probably due to light inhibition.

KW - Bragg diffraction

KW - Light channeling

KW - Nano-particles

KW - Photonic crystal

KW - Stop-band

UR - https://www.scopus.com/pages/publications/0041828496

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AN - SCOPUS:0041828496

SN - 0379-6779

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SP - 643

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JO - Synthetic Metals

JF - Synthetic Metals

IS - 3

Y2 - 9 February 2003 through 14 February 2003

ER -

Self-assembled colloidal photonic crystals: Light channels in cracks

Abstract

Keywords

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