Institute of Physics , Chinese Academy of Sciences , Beijing 100190 , China.
School of Physics, and College of Materials Science and Optoelectronic Technology , University of Chinese Academy of Sciences , Beijing 100049 , China.
Nano Lett. 2018 May 9;18(5):2937-2942. doi: 10.1021/acs.nanolett.8b00289. Epub 2018 Apr 4.
The atomic structures of self-assembled silicon nanoribbons and magic clusters on Ag(110) substrate have been studied by high-resolution noncontact atomic force microscopy (nc-AFM) and tip-enhanced Raman spectroscopy (TERS). Pentagon-ring structures in Si nanoribbons and clusters have been directly visualized. Moreover, the vibrational fingerprints of individual Si nanoribbon and cluster retrieved by subnanometer resolution TERS confirm the pentagonal nature of both Si nanoribbons and clusters. This work demonstrates that Si pentagon can be an important element in building silicon nanostructures, which may find important applications for future nanoelectronic devices based on silicon.
通过高分辨率非接触原子力显微镜（nc-AFM）和针尖增强拉曼光谱（TERS）研究了自组装硅纳米带和银（110）基底上的魔术团簇的原子结构。直接观察到硅纳米带和团簇中的五边形结构。此外，通过亚纳米分辨率 TERS 获得的单个硅纳米带和团簇的振动指纹证实了硅纳米带和团簇的五边形性质。这项工作表明，硅五边形可以成为构建硅纳米结构的重要元素，这可能为基于硅的未来纳米电子器件的应用提供重要依据。
