异质结
光电效应
过渡金属
材料科学
调制(音乐)
纳米技术
数码产品
光电子学
化学
物理
物理化学
催化作用
生物化学
声学
作者
Jiansheng Dong,Yipeng Zhao,Gang Ouyang,Guowei Yang
摘要
As a type of layered two-dimensional (2D) structure, transition-metal dichalcogenides (TMDs) and related heterostructures have recently received much attention in applications such as electronics, optoelectronics, and energy conversion/storage. The changes in the atomic bond nature in 2D TMDs, including bond length, bond angle, and bond energy, are the key factors affecting the performance of these systems. Some modulations, such as strain engineering and geometry effect, provide effective methods to enhance the related performance of devices constructed by 2D TMDs by a change in the bond nature. In this Perspective, we review our recent works done on photoelectric conversion properties of 2D TMDs and related heterostructures under various conditions, analyze the underlying mechanism of different modulation modes, and then identify the key factors determining optimal optoelectronic properties at the atomic level.
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