Diamond-Structured Titania Photonic-Bandgap Crystals from Biological Templates

Photonic crystal scales with a diamond‐based lattice from the weevil Lamprocyphus augustus are transformed into a high‐dielectric titania replica by a biotemplating double‐imprint route. Multidirectional optical reflectance spectroscopy of the replicated structure gives an angle‐independent reflecti...

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Veröffentlicht in:	Advanced materials (Weinheim) 2010-01, Vol.22 (1), p.107-110
Hauptverfasser:	Galusha, Jeremy W., Jorgensen, Matthew R., Bartl, Michael H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Biophotonics Biotemplating Crystallization Diamond - chemistry Photonic crystals Photons Titania Titanium - chemistry Weevils - chemistry
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creator	Galusha, Jeremy W. Jorgensen, Matthew R. Bartl, Michael H.
description	Photonic crystal scales with a diamond‐based lattice from the weevil Lamprocyphus augustus are transformed into a high‐dielectric titania replica by a biotemplating double‐imprint route. Multidirectional optical reflectance spectroscopy of the replicated structure gives an angle‐independent reflection band in the visible spectrum, in agreement with photonic band structure calculations, which reveal the formation of a complete photonic bandgap at visible frequencies.
doi_str_mv	10.1002/adma.200902852
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subjects	Animals Biophotonics Biotemplating Crystallization Diamond - chemistry Photonic crystals Photons Titania Titanium - chemistry Weevils - chemistry
title	Diamond-Structured Titania Photonic-Bandgap Crystals from Biological Templates
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