Recent progress in chemical vapor deposition growth of two-dimensional transition metal dichalcogenides

IF 4.5 2区材料科学 Q1 CRYSTALLOGRAPHY

Progress in Crystal Growth and Characterization of Materials Pub Date : 2016-09-01 DOI:10.1016/j.pcrysgrow.2016.06.002

Swee Liang Wong, Hongfei Liu, Dongzhi Chi

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引用次数: 56

Abstract

Two-dimensional (2D) transition metal dichalcogenides (TMDCs) have received significant attention recently due to their unique properties such as a transition from indirect to direct band gap when thinned down to a monolayer and also valley-dependent photoluminescence. In addition, being a semiconductor with considerable mobility, it has been touted as a candidate in next generation electronics. However, a major hurdle to its implementation is the difficulty in producing large areas of these 2D TMDCs with well-defined thicknesses. In this review, we will first introduce the basic properties as well as the various synthesis methods of 2D TMDCs. Focus will be placed on recent advances in chemical vapor deposition (CVD) growth as they currently yield the largest areas. Obstacles present in CVD growth will be presented and existing solutions to them will be discussed in tandem with current characterization methods for evaluation of crystal quality. Through our presentation on the latest approaches to issues in CVD growth, we hope to present the readers a perspective on recent developments as well as providing an outlook on the future of CVD growth of TMDCs.

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二维过渡金属二硫族化合物化学气相沉积生长研究进展

二维(2D)过渡金属二硫族化合物(TMDCs)由于其独特的性质，如从间接带隙到直接带隙的转变，当薄化到单层时，以及谷依赖的光致发光，最近受到了极大的关注。此外，由于具有相当大的移动性，它被吹捧为下一代电子产品的候选者。然而，其实施的一个主要障碍是难以生产具有良好厚度的大面积2D TMDCs。本文首先介绍了二维TMDCs的基本性质以及各种合成方法。重点将放在化学气相沉积(CVD)增长的最新进展上，因为它们目前产量最大。将介绍CVD生长中存在的障碍，并讨论现有的解决方案，以及当前用于评估晶体质量的表征方法。通过我们对CVD增长问题的最新方法的介绍，我们希望向读者展示最近发展的观点，并对TMDCs的CVD增长的未来提供展望。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Progress in Crystal Growth and Characterization of Materials 工程技术-材料科学：表征与测试

CiteScore

8.80

自引率

2.00%

发文量

审稿时长

1 day

期刊介绍： Materials especially crystalline materials provide the foundation of our modern technologically driven world. The domination of materials is achieved through detailed scientific research. Advances in the techniques of growing and assessing ever more perfect crystals of a wide range of materials lie at the roots of much of today''s advanced technology. The evolution and development of crystalline materials involves research by dedicated scientists in academia as well as industry involving a broad field of disciplines including biology, chemistry, physics, material sciences and engineering. Crucially important applications in information technology, photonics, energy storage and harvesting, environmental protection, medicine and food production require a deep understanding of and control of crystal growth. This can involve suitable growth methods and material characterization from the bulk down to the nano-scale.