Effect of Thickness on Band Structure of Mica by Photoelectron Spectroscopy

JIE JHOU^1*, Yi-Ying Lu¹

¹Department of Physics, National Sun Yat-sen University, Department of Physics, Taiwan

* Presenter:JIE JHOU, email:s9817011@gmail.com

Mica, a layered material without dangling bonds, has applications in substrates for material growth due to chemical stability and atomic-level flatness. For example, transition metal dichalcogenides and II–VI/III–V semiconductors, both could grow on mica. Recent studies have indicated that the decreasing of mica’s layers results in the decrease of bandgap. Therefore, the nature of mica changes from insulator to semiconductor and might be suitable as channel materials for field-effect transistors. In this study, we probed the relation between the changing of Mica’s thickness to its physical property by the photoelectron spectroscopy.

Keywords: Layered materials, Mica, Photoelectron Spectroscopy, Band structure