Tin(II) Sulfide (SnS) Nanosheets by Liquid-Phase Exfoliation of Herzenbergite: IV-VI Main Group Two-Dimensional Atomic Crystals

被引：241

作者：

Brent, Jack R. ^{[1
]}

Lewis, David J. ^{[1
,2
]}

Lorenz, Tommy ^{[3
]}

Lewis, Edward A. ^{[1
]}

Savjani, Nicky ^{[2
]}

Haigh, Sarah J. ^{[1
]}

Seifert, Gotthard ^{[3
]}

Derby, Brian ^{[1
]}

O'Brien, Paul ^{[1
,2
]}

机构：

[1] Univ Manchester, Sch Mat, Manchester M13 9PL, Lancs, England

[2] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England

[3] Tech Univ Dresden, Theoret Chem, D-01069 Dresden, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2015年 / 137卷 / 39期

基金：

英国工程与自然科学研究理事会;

关键词：

CHEMICAL-VAPOR-DEPOSITION; DENSITY-FUNCTIONAL THEORY; SINGLE-SOURCE PRECURSORS; FEW-LAYER GRAPHENE; THIN-FILMS; TIN SULFIDE; BLACK PHOSPHORUS; HYDROTHERMAL SYNTHESIS; TRANSPORT-PROPERTIES; NANOCRYSTALS;

D O I：

10.1021/jacs.5b08236

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The liquid-phase exfoliation of tin(II) sulfide to produce SnS nanosheets in N-methyl-2-pyrrolidone is reported. The material is characterized by Raman spectroscopy, atomic force microscopy, lattice-resolution scanning transmission electron microscope imaging, and energy dispersive X-ray spectrum imaging. Quantum chemical calculations on the optoelectronic characteristics of bulk and 10-layer down to monolayer SnS have been performed using a quantum chemical density functional tight-binding approach. The optical properties of the SnS and centrifugally fractionated SnS nanosheet dispersions were compared to that predicted by theory. Through centrifugation, bilayer SnS nanosheets can be produced size-selectively. The scalable solution processing of semiconductor SnS nanosheets is the key to their commercial exploitation and is potentially an important step toward the realization of a future electronics industry based on two-dimensional materials.

引用

页码：12689 / 12696

页数：8

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