Structural and optical properties of amorphous Si-Ge-Te thin films prepared by combinatorial sputtering.

ABSTRACT: The lack of order in amorphous chalcogenides offers them novel properties but also adds increased challenges in the discovery and design of advanced functional materials. The amorphous compositions in the Si-Ge-Te system are of interest for many applications such as optical data storage, optical sensors and Ovonic threshold switches. But an extended exploration of this system is still missing. In this study, magnetron co-sputtering is used for the combinatorial synthesis of thin film libraries, outside the glass formation domain. Compositional, structural and optical properties are investigated and discussed in the framework of topological constraint theory. The materials in the library are classified as stressed-rigid amorphous networks. The bandgap is heavily influenced by the Te content

SUBMITTER: Mihai C 

PROVIDER: S-EPMC8175571 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature