Submission Date


Document Type

Paper- Restricted to Campus Access


Physics & Astronomy

Faculty Mentor

Casey Schwarz


Presented during the 24th Annual Summer Fellows Symposium, July 22, 2022 at Ursinus College.

Project Description

Chalcogenide glasses (ChGs) have a wide range of multidisciplinary applications. In industry, ChGs are used to vastly improve infrared sight abilities. There are, however, improvements that can be made to the films’ stability, cost, and flexibility. This work seeks to produce thin films that have these advantages, with capabilities comparable or better than what is widely used in the field. Here we will report a solution-based method for the creation of ChG thin films. Both bulk As2S3 and As2Se3 compounds in combination with an ethylenediamine (EDA) solvent were explored. Varying solution concentrations as well as improved substrate preparation methods were tested. Spin coating procedures were utilized during the film making process. The spin-coating technique has been successful in comparison to thermal deposition in producing homogeneous thin films that can be adjusted in thickness by altering spin speeds. A vacuum oven was used to lessen the chance of impurities during the baking of the thin films. The completed thin films were then tested for their transmission capabilities using UV-Vis spectroscopy.


Available to Ursinus community only.