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.
Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Tao
T
Ding
Kai
K
Song
Koen
K
Clays
Chen-Ho
CH
Tung
D003102:Colloids / Q000737:chemistry*; D003460:Crystallization; D008280:Magnetics
D003102:Colloids