From Ta₂S₅ Wires to Ta₂O₅ and Ta₂O_5-x S _x.

ABSTRACT: Synthesis routes to forming novel materials are oftentimes complicated and indirect. For example, Ta₂S₅ has only been found as an unwanted byproduct of certain chemical reactions, and its properties were unknown. However, here we demonstrate the growth of Ta₂S₅ wires with steel-like tensile strength, which are also precursors for the first controlled synthesis of long, mesoscopic Ta₂O₅ wires and superconducting Ta₂O_5-x S _x wires. Single-crystal wires of tantalum pentasulfide, Ta₂S₅, were first grown using vapor transport from polycrystalline XTa₂S₅, sulfur, and TeCl₄ in fused-quartz tubes, where X = Ba or Sr. Crystals form a

SUBMITTER: Benjamin SM 

PROVIDER: S-EPMC7931416 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature