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Nano Lett. 2005 Dec;5(12):2646-50.

Template-assisted growth of nominally cubic (100)-oriented three-dimensional crack-free photonic crystals.

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Department of Electronics & Electrical Engineering, University of Glasgow, Glasgow G12 8LT, Scotland, U.K.


Three-dimensional (3D) photonic crystals (PhCs) are now beginning to acquire functionality via the use of dopants and heterostructures. However, the self-organized fabrication of large-area single crystals that are free of cracks and stacking faults has remained a challenge. We demonstrate a technology for the fabrication of (100)-oriented thin film 3D opal PhCs that exhibit no cracks over areas having no intrinsic size limit via a modified template-assisted colloidal self-assembly approach onto a patterned substrate. This technology potentially makes available large area regions of single photonic crystal, which can be used for optoelectronic devices.

[Indexed for MEDLINE]

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