Controlled growth of Tellurene via Chloride-assisted CVD and the investigation of basic thermal properties.

Guan Chih Chen^1*, Yi Hsun Chan¹, Sheng Hsin Huang², Yu Ze Chen¹

¹Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan
²Materials and Electro-Optics Research Division, National Chung Shan Institute of Science & Technology, Taoyuan, Taiwan

* Presenter:Guan Chih Chen, email:g5521676@gmail.com

Since 2017, 2D-Te (tellurene) nanoflake was synthesized via hydrothermal process for the first time, appealing properties including high carrier mobility, stable mid-infrared photoresponse, piezoelectric effect and anisotropic thermal conductivity leading to intensive research interest for the fabrication of nanodevices.
In this topic, we successfully synthesized tellurene via chloride-assisted chemical vapor deposition in the thickness ranging from 70 nm to 10 nm.
We also investigate the thermal property of Tellurene by using Scanning Thermal Microscope (SThM). Discovering that when the heat conductivity of Tellurene increased, the thickness of the Tellurene would also increase which matched the conjecture of the previous report in 2019.
We consider this new strategy may provide a new approach to control the thickness of Tellurene；Based on the thermal properties of this material, it has great potential to be developed into thermoelectric materials and thermal insulation materials field.

Keywords: 2D material, CVD, thermal conductivity