Two-and three-dimensional composite photonic crystals of macroporous silicon and lead sulfide semiconductor nanostructures

Nadav Gutman; Akiva Armon; Anna Osherov; Yuval Golan; Amir Sa'ar

doi:10.1002/pssa.200881010

Two-and three-dimensional composite photonic crystals of macroporous silicon and lead sulfide semiconductor nanostructures

Nadav Gutman, Akiva Armon, Anna Osherov, Yuval Golan, Amir Sa'ar

Department of Materials Engineering

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

9 Scopus citations

Abstract

We describe a new method for direct deposition and growth of nanocyrstalline lead sulfide (PbS) thin films into two-and three-dimensional arrays of macroporous silicon and the formation of composite silicon photonic crystals (PhCs). Infrared transmission measurements exhibit a substantial red-shift of the photonic stop bands from the composite PhCs relative to the PhC substrates. Photoluminescence spectroscopy reveals the effect of slow-light modes on the emission spectra from PbS thin films inside a two-dimensional PhC. Top-view SEM image of a 2D composite photonic crystal with thin layers of PbS nanocrystals covering the pore's walls.

Original language	English
Pages (from-to)	1290-1294
Number of pages	5
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	206
Issue number	6
DOIs	https://doi.org/10.1002/pssa.200881010
State	Published - 1 Jun 2009

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Electrical and Electronic Engineering
Materials Chemistry

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abstract = "We describe a new method for direct deposition and growth of nanocyrstalline lead sulfide (PbS) thin films into two-and three-dimensional arrays of macroporous silicon and the formation of composite silicon photonic crystals (PhCs). Infrared transmission measurements exhibit a substantial red-shift of the photonic stop bands from the composite PhCs relative to the PhC substrates. Photoluminescence spectroscopy reveals the effect of slow-light modes on the emission spectra from PbS thin films inside a two-dimensional PhC. Top-view SEM image of a 2D composite photonic crystal with thin layers of PbS nanocrystals covering the pore's walls.",

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AU - Gutman, Nadav

AU - Armon, Akiva

AU - Osherov, Anna

AU - Golan, Yuval

AU - Sa'ar, Amir

PY - 2009/6/1

Y1 - 2009/6/1

N2 - We describe a new method for direct deposition and growth of nanocyrstalline lead sulfide (PbS) thin films into two-and three-dimensional arrays of macroporous silicon and the formation of composite silicon photonic crystals (PhCs). Infrared transmission measurements exhibit a substantial red-shift of the photonic stop bands from the composite PhCs relative to the PhC substrates. Photoluminescence spectroscopy reveals the effect of slow-light modes on the emission spectra from PbS thin films inside a two-dimensional PhC. Top-view SEM image of a 2D composite photonic crystal with thin layers of PbS nanocrystals covering the pore's walls.

AB - We describe a new method for direct deposition and growth of nanocyrstalline lead sulfide (PbS) thin films into two-and three-dimensional arrays of macroporous silicon and the formation of composite silicon photonic crystals (PhCs). Infrared transmission measurements exhibit a substantial red-shift of the photonic stop bands from the composite PhCs relative to the PhC substrates. Photoluminescence spectroscopy reveals the effect of slow-light modes on the emission spectra from PbS thin films inside a two-dimensional PhC. Top-view SEM image of a 2D composite photonic crystal with thin layers of PbS nanocrystals covering the pore's walls.

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Two-and three-dimensional composite photonic crystals of macroporous silicon and lead sulfide semiconductor nanostructures

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