Strong circular Bragg phenomena in self-ordered porous helical nanorod arrays of Alq3

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DOIResolve DOI: http://doi.org/10.1063/1.2216903
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TypeArticle
Journal titleApplied Physics Letters
Volume88
Issue25
Pages251106-1251106-3
SubjectChiral symmetries; thin films; polarization; thin film structure; aluminium
AbstractPorous chiralthin films composed of a nearly hexagonal-close-packed array of helical nanorods of tris-(8-hydroxyquinoline) aluminum(Alq3) are fabricated using glancing angle deposition and exhibit a one-dimensional polarization-dependent photonic stop band. These chiralthin films transmit only one handedness of circularly polarized light and emit highly circularly polarized photoluminescence. The strong circular Bragg phenomena exhibited by these films suggest potential for use of these films in low-threshold mirrorless lasing and circularly polarized emission applications, while the porosity of the films allows for infiltration by dyes or liquid crystals to enable the formation of unique hybrid materials.
Publication date
LanguageEnglish
AffiliationNRC National Institute for Nanotechnology; National Research Council Canada
Peer reviewedYes
NRC number192
NPARC number8926387
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Record identifier699b92da-86cf-4fcf-ac1e-f2f079956936
Record created2009-04-23
Record modified2016-05-09
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