Open AccessCylindrical macroporous silica inverse opal structures coassembled by sol-gel assembly method
Author(s) -
Li Xia,
Weihua Guo,
Luuml; Zhi-Juan,
Xing Jin-Hua,
Ming Wang
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.024205
Subject(s) - materials science , photonic crystal , inverse , optics , transmission electron microscopy , capillary action , lattice (music) , sol gel , photonics , scanning electron microscope , optoelectronics , nanotechnology , composite material , geometry , physics , mathematics , acoustics
Cylindrical macroporous silica structures are fabricated on the surfaces of glass capillary with different diameters by a sol-gel cooperative assembly method. The cylindrical inverse opals are characterized by scanning electron microscope, showing that the (111)-like plane of face-centered-cubic (fcc) structure is parallel to the surface of the cylindrical capillary. Transmission spectra demonstrate typical photonic band gaps (PBGs) of about 40% in the direction of [111] lattice orientation, which accords well with the result from the Bragg formula. The excellent optical properties not only affirm the success of sol-gel coassembled macroporous silica inverse opals on cylindrical substrates, but also introduce PBG materials to meet the requirements of the practical applications of optical communication, optical switching and sensors.