Controlled directionality of ellipsoids in monolayer and multilayer colloidal crystals.
We present a self-assembly approach for monolayer and multilayer deposition of ellipsoids with a controllable direction. The direction of the ellipsoids in the assembly can be conveniently tuned by external applied magnetic field. This level of control on positional and directional order suggests a way to build monolayer templates for lithography with two-dimensional patterns and three-dimensional anisotropic photonic crystals, which may open the way toward the complete photonic band gap in the visible.
Ding
Tao
T
Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Song
Kai
K
Clays
Koen
K
Tung
Chen-Ho
CH
D003102:Colloids / Q000737:chemistry*; D003460:Crystallization; D008280:Magnetics
D003102:Colloids