Enhanced photoluminescence and photonic bandgap modification from composite photonic crystals of macroporous silicon and nanocrystalline PbS thin films

N. Gutman; A. Armon; A. Sa'Ar; A. Osherov; Y. Golan

doi:10.1063/1.2969054

Enhanced photoluminescence and photonic bandgap modification from composite photonic crystals of macroporous silicon and nanocrystalline PbS thin films

N. Gutman^*, A. Armon, A. Sa'Ar, A. Osherov, Y. Golan

^*Corresponding author for this work

Racah Institute of Physics

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

19 Scopus citations

Abstract

We report on the fabrication of composite photonic crystals (PCs) of macroporous silicon and PbS thin films and about their passive and active optical properties. We have measured a redshift in the composite PC photonic stopbands relative to those of the PC substrate. In addition, we have measured a high extraction efficiency of the photoluminescence from the embedded PbS films due to band-edge singularities and slow-light modes of a defect-free two-dimensional composite PC. The peak extraction efficiency has been found to be six times larger than that of planar unpatterned PbS films.

Original language	English
Article number	073111
Journal	Applied Physics Letters
Volume	93
Issue number	7
DOIs	https://doi.org/10.1063/1.2969054
State	Published - 2008

Bibliographical note

Funding Information:
This work was partially funded by the Israel Science Foundation (ISF), Grant No. 1298/07.

Access to Document

10.1063/1.2969054

Cite this

@article{2b01bff2590f439a8cf6da713fc87e96,

title = "Enhanced photoluminescence and photonic bandgap modification from composite photonic crystals of macroporous silicon and nanocrystalline PbS thin films",

abstract = "We report on the fabrication of composite photonic crystals (PCs) of macroporous silicon and PbS thin films and about their passive and active optical properties. We have measured a redshift in the composite PC photonic stopbands relative to those of the PC substrate. In addition, we have measured a high extraction efficiency of the photoluminescence from the embedded PbS films due to band-edge singularities and slow-light modes of a defect-free two-dimensional composite PC. The peak extraction efficiency has been found to be six times larger than that of planar unpatterned PbS films.",

author = "N. Gutman and A. Armon and A. Sa'Ar and A. Osherov and Y. Golan",

note = "Funding Information: This work was partially funded by the Israel Science Foundation (ISF), Grant No. 1298/07. ",

year = "2008",

doi = "10.1063/1.2969054",

language = "אנגלית",

volume = "93",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "7",

}

TY - JOUR

T1 - Enhanced photoluminescence and photonic bandgap modification from composite photonic crystals of macroporous silicon and nanocrystalline PbS thin films

AU - Gutman, N.

AU - Armon, A.

AU - Sa'Ar, A.

AU - Osherov, A.

AU - Golan, Y.

N1 - Funding Information: This work was partially funded by the Israel Science Foundation (ISF), Grant No. 1298/07.

PY - 2008

Y1 - 2008

N2 - We report on the fabrication of composite photonic crystals (PCs) of macroporous silicon and PbS thin films and about their passive and active optical properties. We have measured a redshift in the composite PC photonic stopbands relative to those of the PC substrate. In addition, we have measured a high extraction efficiency of the photoluminescence from the embedded PbS films due to band-edge singularities and slow-light modes of a defect-free two-dimensional composite PC. The peak extraction efficiency has been found to be six times larger than that of planar unpatterned PbS films.

AB - We report on the fabrication of composite photonic crystals (PCs) of macroporous silicon and PbS thin films and about their passive and active optical properties. We have measured a redshift in the composite PC photonic stopbands relative to those of the PC substrate. In addition, we have measured a high extraction efficiency of the photoluminescence from the embedded PbS films due to band-edge singularities and slow-light modes of a defect-free two-dimensional composite PC. The peak extraction efficiency has been found to be six times larger than that of planar unpatterned PbS films.

UR - http://www.scopus.com/inward/record.url?scp=50249096150&partnerID=8YFLogxK

U2 - 10.1063/1.2969054

DO - 10.1063/1.2969054

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:50249096150

SN - 0003-6951

VL - 93

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 7

M1 - 073111

ER -

Enhanced photoluminescence and photonic bandgap modification from composite photonic crystals of macroporous silicon and nanocrystalline PbS thin films

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this