Gold as a representative plasmonic material have been studied about not only a synthesis of various gold nano-structures, but also an application using their catalytic, optical properties. Gold have been usually used for a supported form on other materials. When gold was used for a supporting material, however, the experimental results could be different from when the gold was used for a supported material. So it is academically and practically important that a synthesis of 1D or 2D gold structure supporting another material.
Our group already have synthesized the gold nanowire(1D) and gold nanoplate(2D) by Vapor transport method. Based on our experience, we have succeeded in synthesizing the sub-millimeter, twin-free and single-crystalline gold 2D structure. Since the structure was synthesized in highly high temperature (1100 ℃ ~ 1200 ℃), the structure had no defect.
A material having an epitaxy relationship with Au (111) such as MoS2, Pt and so on needs Au (111) to continuously grow on the surface. Because the gold 2D structure had a well-ordered surface (exposed lattice plane was (111)), the gold 2D structure could be a promising tool for fabricating the highly ordered composite structure.