Two-Dimensional Hierarchical Semiconductor with Addressable Surfaces

被引：27

作者：

Choi, Bonnie ^{[1
]}

Lee, Kihong ^{[1
]}

Voevodin, Anastasia ^{[1
]}

Wang, Jue ^{[1
]}

Steigerwald, Michael L. ^{[1
]}

Batail, Patrick ^{[1
,2
]}

Zhu, Xiaoyang ^{[1
]}

Roy, Xavier ^{[1
]}

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

[2] Univ Angers, CNRS UMR 6200, Lab MOLTECH, F-49045 Angers, France

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2018年 / 140卷 / 30期

关键词：

CHEVREL PHASES; MOS2; CLUSTERS; FUNCTIONALIZATION; EVOLUTION; ELECTRONICS; NANOSHEETS; CHEMISTRY; RE6SE8CL2; COVALENT;

D O I：

10.1021/jacs.8b05010

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Surfaces play a key role in determining material properties, and their importance is further magnified in the two-dimensional (2D) limit. Though monolayers are entirely composed of surfaces, there is no chemical approach to covalently address them without breaking intralayer bond. Here, we describe a 2D semiconductor that offers two unique features among 2D materials: structural hierarchy within the monolayer and surface reactive sites that enable functionalization. The 2D semiconductor is composed of a single layer of strongly interconnected Re6Se8 clusters arranged in an oblique lattice capped by substitutionally labile Cl atoms. We show that a simple ligand substitution strategy borrowed from traditional coordination chemistry can be used to modify the surface of the 2D material while preserving its internal structure. The potential generality of this approach establishes a promising route toward multifunctional 2D materials with tunable physical and chemical properties and may also facilitate better electrical top contact to 2D semiconductors.

引用

页码：9369 / 9373

页数：5

共 33 条

[11] Chemistry of hexanuclear rhenium chalcohalide clusters [J].