- 著者
-
鈴木 誠也
- 出版者
- 公益社団法人 日本表面真空学会
- 雑誌
- 表面と真空 (ISSN:24335835)
- 巻号頁・発行日
- vol.64, no.8, pp.358-363, 2021-08-10 (Released:2021-08-10)
- 参考文献数
- 13
Germanene, a graphene-like honeycomb crystal of germanium, has been attracting immense attention owing to its exotic properties such as a tunable bandgap and high carrier mobility. However, the fabrication of germanene-based electronic devices is difficult owing to its chemical instability. To overcome this problem, we proposed and developed a new method of germanene growth at graphene/Ag(111) and hexagonal boron nitride/Ag(111) interfaces. The grown germanene at the interfaces was stable in air and uniform over the entire area covered with a van der Waals (vdW) material. As an important finding, a vdW interface provides a nanoscale platform for growing germanene similarly to that in vacuum, while this cannot be achieved with a typical oxide interface (Al2O3). We believe that our work is of significantly importance not only for the growth of germanene but also for the fabrication of future germanene-based electronic devices.