| 초록 |
Rapid progress in two-dimensional (2D) crystalline materials has recently enabled a range of device possibilities. These possibilities may be further expanded through the development of advanced 2D glass materials. In this talk, control of crystallinity during the catalytic growth of single-atom-thick 2D carbon layer on germanium surface will be presented. A hydrogen-terminated germanium (Ge) substrate is a promising catalytic substrate for the growth of carbon monolayer, because of (i) its reasonably good catalytic activity for the catalytic decomposition of carbon atoms on the surface, (ii) the extremely low solubility of carbon in Ge even at its melting temperature, enabling growth of complete carbon monolayer, with controlled crystallinity: from single-crystal graphene to Zachariasen carbon monolayer, a novel amorphous 2D carbon allotrope. Some of possible applications of the obtained carbon monolayers will also be discussed. |
