Synthesis of borophene nanoribbons on Ag(110) surface

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Synthesis of borophene nanoribbons on Ag(110) surface

Qing Zhong, Longjuan Kong, Jian Gou, Wenbin Li, Shaoxiang Sheng, Shuo Yang, Peng Cheng, Hui Li, Kehui Wu, and Lan Chen

Phys. Rev. Materials 1, 021001(R) – Published 5 July 2017

Abstract

We present the successful synthesis of single-atom-thick borophene nanoribbons (BNRs) by self-assembly of boron on Ag(110) surface. The scanning tunneling microscopy (STM) studies reveal high quality BNRs: all the ribbons are along the $[- 110]$ direction of Ag(110), and can run across the steps on the surface. The width of ribbons is distributed in a narrow range around $10.3 \pm 0.2 nm$ . High resolution STM images revealed four ordered surface structures in BNRs. Combined with DFT calculations, we found that all four structures of boron nanoribbons consist of the boron chains with different widths, separated by hexagonal hole arrays. The successful synthesis of BNRs enriches the low dimensional allotrope of boron and may promote further applications of borophene.

Received 18 April 2017

DOI:https://doi.org/10.1103/PhysRevMaterials.1.021001

Physics Subject Headings (PhySH)

Monolayer films Nanoribbon Surfaces

Density functional theory Molecular beam epitaxy Scanning tunneling microscopy

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Qing Zhong^1,2, Longjuan Kong^1,2, Jian Gou^1,2, Wenbin Li^1,2, Shaoxiang Sheng^1,2, Shuo Yang^1,2, Peng Cheng^1,2, Hui Li^1,3,*, Kehui Wu^1,2,4,†, and Lan Chen^1,2,‡

¹Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
²School of physics, University of Chinese Academy of Sciences, Beijing 100049, China
³Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
⁴Collaborative Innovation Center of Quantum Matter, Beijing 100871, China