| 초록 |
In 2004, Andre Geim and Konstantin Novoselov achieved a revolutionary breakthrough as they ingeniously extracted graphene from graphite giving rise to 2D frontier-based exploration. After graphene, alternative 2D materials moved into the spotlight very soon. Herein, we have extensively studied the physicochemical properties of a lamellar ZnSb phase. The 2D ZnSb phase can be exfoliated easily by sonication due to weak van der Waals interactions in the interlayer spaces. The stacking manner of the lamellar ZnSb phase observed by the STEM study also confirms its exfoliatable features. Significantly, the high carrier mobility up to 468 cm2 V−1 s−1 was achieved in 2D ZnSb at room temperature, nearly 5 times that of 3D ZnSb counterpart. This value is even higher than those of many similar 2D materials. These results provide a viable route for creating new 2D materials with surprisingly outstanding properties. |
