Premium
Triply Periodic Bicontinuous Structures as Templates for Photonic Crystals: A Pinch‐off Problem
Author(s) -
Moon J. H.,
Xu Y.,
Dan Y.,
Yang S.M.,
Johnson A. T.,
Yang S.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200700147
Subject(s) - template , materials science , photonic crystal , fabrication , gyroid , photonics , diamond , conformal map , photonic bandgap , nanotechnology , band gap , optoelectronics , copolymer , composite material , polymer , geometry , mathematics , medicine , alternative medicine , pathology
Triply periodic diamond, cubic, and gyroid structures are studied as templates for the fabrication of 3D photonic crystals (see figure). The achievable backfilling volume fraction and bandgap properties are analyzed by considering the pinch‐off of level surfaces. The conformal coating on such templates is found to result in incomplete filling and loss of the photonic bandgap. An attempt to solve this problem is made by using electrophoretic deposition, which results in a nearly completely filled 3D titania structure.