01-07-2022 | Research paper
Synthetic 2D tellurium nanosheets with intense TE wave polarization absorption by employing the PVD method
Junjie Yuan, Guowei Liu, Yi Xin, Xinyu Wang, Yiping Liu, Xue Han, Shenggui Fu, Zhongsheng Man, Fei Xing, Fang Zhang
Journal of Nanoparticle Research
Login to get access
Tellurium (Te), as one of the chalcogens, is an emerging single-element non-layered p-type semiconductor material. Two-dimensional (2D) Te has shown great application potential in environmental stability, piezoelectric effect, high carrier mobility, and other fields. However, 2D Te is much less known compared to other traditional 2D materials. Herein, 2D Te nanosheets with the thickness of 20–40 nm and 10–20 nm growing under different temperatures and pressure were manufactured successfully by the physical vapor deposition (PVD) method. And the polarization-dependent optical absorption through the polarization-dependent coupling structure (Te/Mica sandwich structure) on a quartz prism was investigated. The results show that the 2D Te nanosheets have intense absorption of TE waves in the visible band. This work provides an experimental basis for the preparation of 2D Te in the future and points the way for its application in optical polarization devices.