[23a-12M-1~10] 16.1 Fundamental properties, evaluation, process and devices in disordered materials

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[23a-12M-3] Localized states in evaporated Sn-Se films evaluated by photothermal deflection spectroscopy

〇Aoi Iida¹, Shuto Tago¹, Tamihiro Gotoh¹ (1.Gunma Univ.)

Keywords:

chalcogenide semiconductor,localized states,photothermal deflection spectroscopy

Chalcogenide materials play an important role in modern nonvolatile memory technology in the form of both phase-change memory and selector. However, chalcogenide materials currently in use have been pointed out to have challenges due to their materials. Therefore, we focused on Sn-Se compounds as a new memory material. In this study, we observed weak optical absorption in Sn-Se thin films by using photothermal deflection spectroscopy (PDS) in order to understand the localized states of Sn-Se films. The obtained results are discussed.