Spectroscopy and Theoretical Modeling of Phonon Vibration Modes and Band Gap Energy of Cu₂ZnSn(S _x Se_1-x )₄ Bulk Crystals and Thin Films.

ABSTRACT: Semiconductor Cu₂ZnSn(S _x Se_1-x )₄ (CZTSSe) solid solution is considered as a perspective absorber material for solar cells. However, during its synthesis or deposition, any modification in the resulting optical properties is hardly predicted. In this study, experimental and theoretical analyses of CZTSSe bulk crystals and thin films are presented based on Raman scattering and absorption spectroscopies together with compositional and morphological characterizations. CZTSSe bulk and thin films are studied upon a change in the x = S/(S + Se) aspect ratio. The morphological study is focused on surface visualization of the solid solutions, depending on x variation. It has been discovered for the first time that the surface

SUBMITTER: Babichuk IS 

PROVIDER: S-EPMC8567408 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature