Synthesis of borophenes: Anisotropic, two-dimensional boron polymorphs

By Andrew J. Mannix, Xiang‐Feng Zhou, B. Kiraly, J. Wood, D. Alducin, B. Myers, Xiaolong Liu, B. Fisher, U. Santiago, J. Guest and 5 more. Science, 2015

2,290 citations recorded by the source corpus.

Borophene: Boron in two dimensions Although bulk allotropes of carbon and boron differ greatly, small clusters of these elements show remarkable similarities. Boron analogs of two-dimensional carbon allotropes such as graphene have been predicted. Now Mannix et al. report the formation of two-dimensional boron by depositing the elemental boron onto a silver surface under ultrahigh-vacuum conditions (see the Perspective by Sachdev). The graphene-like structure was buckled, weakly bonded to the substrate, and metallic. Science, this issue p. 1513; see also p. 1468 A two-dimensional boron allotrope forms after depositing its elemental vapor on a silver surface in vacuum. [Also see Perspective by Sachdev] At the atomic-cluster scale, pure boron is markedly similar to carbon, forming simple planar molecules and cage-like fullerenes. Theoretical studies predict that two-dimensional (2D) boron sheets will adopt an atomic configuration similar to that of boron atomic clusters. We synthesized atomically thin, crystalline 2D boron sheets (i.e., borophene) on silver surfaces under ultrahigh-vacuum conditions. Atomic-scale characterization, supported by theoretical calculations, revealed structures reminiscent of fused boron clusters with multiple scales of anisotropic, out-of-plane buckling. Unlike bulk boron allotropes, borophene shows metallic characteristics that are consistent with predictions of a highly anisotropic, 2D metal.

Subfields: Materials Chemistry, Radiology, Nuclear Medicine and Imaging

View Paper: https://www.semanticscholar.org/paper/cefc08b79bb858f12bdbb6bf1094f1fdcc29b01b

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Materials Chemistry

1. Mark C. Hersam
2. Mauricio Terrones
3. Kai Xiao
4. Le Shi
5. Yuanfeng Xu
6. Jiwoong Park
7. Hao Zhang
8. Wei Shyy

Citations in the corpus

• Advances and challenges in lithium-air batteries (2017, positive): “In searching for the alternative anode materials, twodimensional (2-D) materials, such as MXene [344], phosphorene [345], and borophene [346], have attracted much attention due to the high surface-volume ratio, small volume changes, and”