Simulation and fabrication of binary colloidal photonic crystals and their inverse structures
Author(s)
Wan, Yong
Cai, Zhongyu
Xia, Linhua
Wang, Likui
Li, Yanqiang
Li, Qin
Zhao, XS
Griffith University Author(s)
Year published
2009
Metadata
Show full item recordAbstract
Theoretical and experimental investigations have demonstrated that full bandgaps are not easy to achieve in the face-centered cubic (fcc) unary and binary structures; even for unary inverse opals with high refractive index network, the bandgaps are not as large as 1D or 2D structures. In this work, we simulated the bandgap of a binary inverse opal, which is over 16% larger than that of a unary inverse crystal. Two kinds of binary colloidal crystals and their inverse structures have been fabricated by a horizontal deposition method.Theoretical and experimental investigations have demonstrated that full bandgaps are not easy to achieve in the face-centered cubic (fcc) unary and binary structures; even for unary inverse opals with high refractive index network, the bandgaps are not as large as 1D or 2D structures. In this work, we simulated the bandgap of a binary inverse opal, which is over 16% larger than that of a unary inverse crystal. Two kinds of binary colloidal crystals and their inverse structures have been fabricated by a horizontal deposition method.
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Journal Title
Materials Letters
Volume
63
Issue
24-25
Subject
Physical sciences
Chemical sciences
Engineering
Powder and particle technology