Rare-Earth Substitution Induced Symmetry Breaking for The First Sc-Based Nonlinear Optical Chalcogenide with High-Performance.

ABSTRACT: Chalcogenides are the most important infrared nonlinear optical (NLO) material candidates, and the exploration of high-performance ones is attractive and challengeable. Hitherto, there is no NLO scandium (Sc) chalcogenides experimentally studied. Here, new quaternary Sc thiophosphate CsScP₂S₇ (CSPS) was synthesized by the facile metal oxide-boron-sulfur/reactive flux hybrid solid-state method. It crystallizes in the monoclinic chiral space group C2, and the layered structure is composed by the new ScP₂S₁₁ functional motifs built by ScS₆ octahedra and P₂S₇ dimers, and the structure-performance analysis reveals that the hyperpolarizability of ScP₂S₁₁ is much greater than the assembled units (Sc

SUBMITTER: Zhao CY 

PROVIDER: S-EPMC11848564 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature