Since the successful fabrication of two-dimensional (2D) tellurium (Te) in 2017, its fascinating properties including a thickness dependence bandgap, environmental stability, piezoelectric effect, high carrier mobility, and photoresponse among others show great potential for various applications. These include photodetectors, field-effect transistors, piezoelectric devices, modulators, and energy harvesting devices. However, as a new member of the 2D material family, much less known is about 2D Te compared to other 2D materials. Motivated by this lack of knowledge, we review the recent progress of research into 2D Te nanoflakes. Firstly, we introduce the background and motivation of this review. Then, the crystal structures and synthesis methods are presented, followed by an introduction to their physical properties and applications. Finally, the challenges and further development directions are summarized. We believe that milestone investigations of 2D Te nanoflakes will emerge soon, which will bring about great industrial revelations in 2D materials-based nanodevice commercialization.

自 2017 年成功制造二维 (2D) 碲 (Te) 以来，其令人着迷的特性，包括厚度依赖性带隙、环境稳定性、压电效应、高载流子迁移率和光响应等，在各种应用中显示出巨大的潜力。其中包括光电探测器、场效应晶体管、压电设备、调制器和能量收集设备。然而，作为二维材料家族的新成员，与其他二维材料相比，人们对二维 Te 的了解要少得多。由于缺乏知识，我们回顾了二维碲纳米片研究的最新进展。首先，我们介绍了本次审查的背景和动机。然后介绍了晶体结构和合成方法，并介绍了它们的物理性质和应用。最后总结了面临的挑战和进一步的发展方向。我们相信，二维Te纳米片的里程碑式研究很快就会出现，这将为基于二维材料的纳米器件商业化带来巨大的工业启示。